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Browse Plants

Narrowed By:Uses: Beds and Borders , Trellis
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Abelia × grandiflora Abelia × grandiflora
(Glossy abelia)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a rounded, semi-evergreen shrub to 10 feet tall and 12 feet wide with glossy, dark green leaves. From midsummer to autumn, it produces fragrant, funnel-shaped white flowers that are tinged with pink.

Abelia × grandiflora 'Confetti' Abelia × grandiflora 'Confetti'
(Variegated glossy abelia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Confetti' offers finely textured medium green foliage variegated with creamy white and pink. Pale pink tubular flowers appear in late summer or fall. This rounded, semi-evergreen shrub grows to about 3 feet tall and 4 feet wide.

Abeliophyllum distichum Abeliophyllum distichum
(White forsythia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This deciduous shrub is related to the forsythia, but differs in that it has white (rather than yellow) flowers that open in early spring before true forsythia. It is a member of the olive family (Oleaceae). In early spring, before the new leaves form, purplish buds all along the grey naked branches open into small white four-petaled, almond-scented flowers with yellow stamens. After flowering, green, glossy abelia-like leaves appear.

Abelmoschus manihot Abelmoschus manihot
(Hibiscus manihot)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A large ornamental okra with dinner-plate-sized, sulfur yellow flowers with dark eyes. Each flower lasts only a day—unfolding slowly in the morning and closing gradually in the evening—but the abundance of flowers open on any one day conceals their short life span.

no image available Acalypha wilkesiana
(Copperleaf, Jacob's coat)
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This spreading shrub is grown for its multi-colored, toothed, oval leaves. Use it as a houseplant or as an annual or container plant outdoors where it is not hardy. Flowers are small, green or pinkish, and generally not noteworthy. 

Acalypha wilkesiana ‘Tricolor’ Acalypha wilkesiana ‘Tricolor’
(Copperleaf, Firedragon, Jacob's coat, Match-me-if-you-can)
(1 user review)

This spreading shrub from tropical and subtropical regions can reach 6 feet tall. It is grown as a houseplant or as an annual outdoors where it's not hardy. Its oval leaves are splashed with red, green, and yellow and its long, fuzzy flowers are borne periodically throughout the year, although they are somewhat hidden. Acalypha wilkesiana 'Tricolor' can be grown in a warm greenhouse, in a border, or as a specimen or hedging plant (especially in warm areas).

Acanthus mollis Acanthus mollis
(Bear's breeches)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Acanthus mollis is prized for its bold clumps of shiny green leaves topped with striking, 3-foot-tall spires of white flowers which are clasped by showy purple bracts. This is a great plant for an eye-catching structural element in a part-shade border.

Acanthus mollis 'Tasmanian Angel' Acanthus mollis 'Tasmanian Angel'
(Bear's breeches)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

With their white margins and mottling, the jagged leaves of 'Tasmanian Angel' are a real showshopper, and in late summer, 3-foot-tall, pink-and-cream flower stalks heighten the effect. The variegation may be less pronounced as the leaves age, but the plant still draws the eye. Use it as a multiseason container specimen or as a bedding plant. -Allan Armitage, Plants to know and grow, Fine Gardening issue #119

Acer palmatum 'Amber Ghost' Acer palmatum 'Amber Ghost'
('Amber Ghost' Japanese maple)
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'Amber Ghost' offers unique color in the maples. In spring, it is first bright pink, changing to a melon, pink-orange color. In summer it is a warm soft amber with a distinct green vein. Fall brings bright red and orange. 'Amber Ghost' is a wide, upright tree, excellent for either container or landscape if you want a series of stunning colors to bring into the garden.

Acer palmatum var. dissectum Acer palmatum var. dissectum
(Japanese maple, Threadleaf Japanese maple)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This round, mound-forming, deciduous Japanese maple has many qualities that make it an excellent garden plant, including a sculptural form, deeply cut foliage, arching shoots, and golden autumn color. The reddish purple flowers are tiny but attractive up close. They are followed by winged fruit. Threadleaf Japanese maple makes a beautiful specimen in small gardens and can be grown in large containers or used for bonsai.

Achillea ‘Coronation Gold’ Achillea ‘Coronation Gold’
(Yarrow)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This 2.5- to 3-feet-tall and 1.5-foot wide plant produces dense, flat clusters of golden yellow flowers above fern-like, silvery foliage starting in early summer.

Achillea millefolium Achillea millefolium
(Yarrow)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This rhizomic, mat-forming and aggressive perennial grows to 2 feet tall and wide with ferny, finely-textured, green foliage. Flowers are produced in flat corymbs in early to late summer.

Achillea millefolium 'Apricot Delight' Achillea millefolium 'Apricot Delight'
('Apricot Delight' yarrow)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Apricot Delight' has deep reddish apricot blooms that then mature to a pale salmon, and they harmonize well with other colors. 'Apricot Delight' has a long blooming season (from early to late summer, with deadheading). This cultivar is smaller than most yarrows, and the blooms make nice cut flowers. -Allan Armitage, Plants to know and grow, Fine Gardening issue #121

Achillea 'Moonshine' Achillea 'Moonshine'
(Yarrow)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This popular gray-leaved yarrow has 18-inch-tall yellow flower heads that last for several weeks in late summer.

Achillea millefolium 'Terracotta' Achillea millefolium 'Terracotta'
(Yarrow)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Flat-topped corymbs of small, daisy-like flowers in colors of salmon-peach to yellow-orange are borne simultaneously on one plant up to 2 feet tall and wide. Flowers are complemented by silvery-green, finely-textured foliage.

no image available Achillea millefolium ‘Fire King’
(Yarrow)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This rhizomatous, mat-forming, upright, aggressive perennial produces strong red flowers in flat corymbs in summer atop finely-textured, aromatic foliage.

no image available Acidanthera bicolor var. murielae
(Abyssinian gladiolus, Sword lily)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Each flowering stem of this bulb produces eight to twelve flowers that open consecutively over a period of three to four weeks. The flowers are fragrant, white, and starry, and have a conspicuous red/maroon center. Its linear, sword-shaped, 2- to 3-foot-tall leaves resemble those of Gladiolus, but are more slender and graceful.

Actaea pachypoda Actaea pachypoda
(White baneberry, White cohosh)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This 3-foot-tall and 2-foot-wide clumping perennial displays spiky racemes of white flowers in late spring and early summer followed by bright white berries with dark tips on bright red stalks. The berries are exceptionally showy and especially effective in shady woodland beds.

Actaea racemosa Actaea racemosa
(Black cohosh, Black snakeroot, Bugbane)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Actaea racemosa is a native woodland perennial with white, somewhat fuzzy flowers in midsummer that wave above astilbe-like, deeply cut foliage. The flowers can be unpleasantly scented, thus the name "bugbane." Formerly in the genus Cimicifuga, this plant is great for use in a woodland garden or moist border.

Actaea rubra Actaea rubra
(Red baneberry, Snakeberry)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Actaea rubra bears white flowers from spring to early summer on plants up to 2 feet tall and 1 foot wide. In late summer, glossy red berries develop. A few cultivars exist. This woodland perennial is native to the U.S.

Actaea simplex Actaea simplex
(Autumn bugbane, Autumn snakeroot)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clumping woodland perennial with deep green foliage up to 4 feet tall and 2 feet wide bears spikes of  fragrant white flowers 1 to 2 feet long in fall. Cultivars exist with varying leaf colors and forms.

Actaea simplex 'Brunette' Actaea simplex 'Brunette'
(Baneberry, Snakeroot)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This chocolate-leaved cultivar up to 4 feet tall and 2 feet wide bears compact spikes of white flowers in late summer. This plant may languish in very warm temperatures. The flowers remain ornamental for three to four weeks.

Actaea simplex ‘Hillside Black Beauty’ Actaea simplex ‘Hillside Black Beauty’
(Bugbane, Autumn snakeroot, black cohosh)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Unlike other bugbanes, 'Hillside Black Beauty' offers deep purple-black foliage. From late spring to late summer, its dark hue makes a wonderful backdrop for colorful foliage and flowering shade plants. In fall, fragrant, cream-colored flowers appear on tall, wandlike stems. An added plus: this plant is deer resistant. --Michael Ruggiero, Regional Picks: Mid-Atlantic, Fine Gardening issue #127

Actinidia kolomikta Actinidia kolomikta
(Variegated kiwi vine)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Variegated kiwi vine is an attractive woody vine that tolerates shade. The male has lovely pink, white, and green variegated leaves and small flowers that are fragrant and cream-covered. This species needs both a male and female plant to produce its sweet, grape-sized fruit. The fruits have no fuzz, and the skin is soft and tender. Best fruit production is achieved in full sun. The cultivar 'Arctic Beauty' has smaller leaves but is hardy to Zone 3.

Adiantum venustum Adiantum venustum
(Himalayan maidenhair fern)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Elegant, lacy foliage on black stems makes this maidenhair fern a standout, even among others in the genus. In addition, when new fronds emerge in late winter or early spring, they are bright bronze-pink. Only about a foot high, Himalayan maidenhair ferns can spread by creeping rhizomes to form a sizeable colony. They also make eye-catching indoor plants and pair well with orchids.

Aeonium arboreum 'Zwartkop' Aeonium arboreum 'Zwartkop'
(Black rose)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The "flowers" of black rose. are actually rosettes of burgundy-black leaves at the ends of stalklike stems. In winter, bright yellow flowers contrast with the dark foliage. 'Zwartkop' is a wonderful backdrop plant that can show off many companion plants to maximum advantage. -Jeff Moore, Regional Picks: Southwest, Fine Gardening issue #120

no image available Aesculus pavia
(Red buckeye)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This conical shrub to small tree has palmate leaves and bears red (sometimes yellow-marked) flowers in 6-inch panicles in summer, followed by smooth-skinned fruit. The flowers attract hummingbirds.

Agastache 'Desert Sunrise' Agastache 'Desert Sunrise'
(Hummingbird mint)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This hummingbird mint boasts large spikes of reddish-pink tubular flowers with an orange tint over a long season in summer and early fall. The whole plant is aromatic. Grow in a bed, border, rock garden, or xeric garden.

Agastache ‘Summer Breeze’ Agastache ‘Summer Breeze’
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Agastache ‘Summer Breeze’ produces hundreds of 1.5-inch-long translucent, tubular blossoms. The flowers are painted in luscious sunset shades and appear from late spring to frost. In hot weather, peach, champagne, and soft pink are its colors, while in cooler months the flowers darken to pale copper and medium rose. It forms an open, airy, 2- to 3-foot-tall clump, and the upper third of each stem bears a long succession of hummingbird-attracting blooms.

Agastache ‘Blue Fortune’ Agastache ‘Blue Fortune’
(Blue Fortune hyssop)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Blue Fortune' produces spikes of powder-blue flowers held over large, deep green foliage. The plant stands approximately 36 inches tall with a mature width of 18 inches. Peak bloom occurs in midsummer when butterflies are plentiful.

Agastache ‘Tutti Frutti’ Agastache ‘Tutti Frutti’
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is an erect, bushy perennial with scented gray-green leaves. Its raspberry-red flowers grow on loose, foot-long spikes from midsummer to late fall. The flower spikes have a long bloom period and attract hummingbirds, butterflies, and other insects.  

Agastache aurantiaca 'Just Peachy' Agastache aurantiaca 'Just Peachy'
('Just Peachy' hummingbird mint, 'Just Peachy' hyssop)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A cultivar discovered at High Country Gardens in Santa Fe, New Mexico, this aromatic, water-wise perennial grows to 30 inches tall and 18 inches wide and features fine, mint-scented, gray-green leaves and spikes of tubular flowers in shades of  soft pink and peach from summer to early fall. The plant is hugely attractive to hummingbirds, hence its common name. It is resistant to heat and drought, and can be used in both mixed borders and containers.

Agastache aurantiaca 'Shades of Orange' Agastache aurantiaca 'Shades of Orange'
('Shades of Orange' hummingbird mint, 'Shades of Orange' hyssop)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A cultivar discovered at High Country Gardens in Santa Fe, New Mexico, this aromatic, water-wise perennial grows to 30 inches tall and 18 inches wide and features fine, mint-scented, gray-green leaves and spikes of tubular flowers in shade of orange from mid-summer to fall. The plant is hugely attractive to hummingbirds, hence the common name.

Agastache cana Agastache cana
(Texas hummingbird mint, Mosquito plant, Wild hyssop)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a 36-inch-tall hyssop with showy rose-pink flower spikes in late summer and fall and licorice-mint scented foliage. It is native to New Mexico and western Texas and attracts butterflies and hummingbirds. Grow in a border, herb garden, rock garden, or butterfly garden. Rubbing the foliage on skin reportedly repels mosquitoes.

Agastache foeniculum Agastache foeniculum
(Anise hyssop)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A classic plant for both herb gardens and borders, anise hyssop is composed of erect branches of mint-and-licorice-scented, medium green leaves ending in fuzzy spikes of small lavender flowers. The plant grows to 3 to 5 feet tall and 1 foot wide and reseeds freely. The flowers are edible and are charming crumbled into salads. The flowers are highly attractive to bees, butterflies, and hummingbirds.

Agastache foeniculum 'Golden Jubilee' Agastache foeniculum 'Golden Jubilee'
(Anise hyssop)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Anise hyssop has subtle but eye-catching chartreuse foliage. Its powder-blue, long-lasting flowers contrast nicely with its leaves.

Agastache rugosa Agastache rugosa
(Wrinkled giant hyssop, Korean hyssop, purple giant hyssop)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This 4-foot-tall and 18-ich-wide, bushy perennial, very similar to the more common anise hyssop (Agastache foeniculum) has strongly mint-and-licorice-scented leaves and short spikes of lavender-blue flowers from midsummer to early fall. Unlike most agastaches, both of these species can tolerate more moisture and humity, making them highly suited to climates outside the arid west.

Agastache rupestris Agastache rupestris
(Sunset hyssop)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

True to its name, sunset hyssop encapsulates a Western sunset in its flowers: bronze with hints of orange and yellow, and streaks of magenta and pink along the margins. More and more flowers emerge as summer progresses. The plant blooms heavily in August, and continues into autumn.

Agave 'Sharkskin' Agave 'Sharkskin'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Thick, succulent grayish green leaves tipped with spines make this 3-foot-tall and wide agave a striking addition to a xeric bed or desert garden. Although its color is muted, its architectural form can't be overlooked.

Ageratum houstonianum Ageratum houstonianum
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

There are many cultivars available of this fast-growing annual. They are best used as bedding, edging, or container plants. Panicles of blue, pink, purple, or white flowerheads arise from oval, downy leaves in midsummer and continue until frost. They have a soft, fuzzy appearance and attract butterflies.

Ageratum houstonianum 'Blue Danube' Ageratum houstonianum 'Blue Danube'
('Blue Danube' ageratum, 'Blue Danube' floss flower)
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This early, compact bloomer grows to only about 6 or 7 inches tall. With its icy blue-purple flowers, it works well when planted tightly along the foreground of a bed. Its color blends easily with most other hues and textures. -Julia Jones, Designing with annueals, Fine Gardening issue #120

no image available Ajania pacifica 'Yellow Splash'
(Pacific chrysanthemum)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This low-mounding perennial has lobed, silver-edged foliage and small yellow flowerheads in autumn.

Ajuga reptans Ajuga reptans
(Carpet bugleweed, Common bugleweed)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This fast spreader has dark green leaves with deep blue flowers spring to summer.

Ajuga reptans 'Black Scallop' Ajuga reptans 'Black Scallop'
('Black Scallop' bugleweed)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Black foliage and spiky blue flowers (which appear in early summer) make a dramatic contrast. 'Black Scallop' thrives in full sun, which intensifies the black color. In full sun, the plant produces numerous runners, which should be thinned to prevent crown rot. In large plantings, you can run a rotary mower with a bagger attachment over the patch to control crowding and keep the foliage fresh. In mixed container plantings, the spilling habit of the plant makes it a standout choice. -Ron Smith, Regional Picks: Upper Plains, Fine Gardening issue #120

Albizia julibrissin Albizia julibrissin
(Mimosa, Silk tree)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A large shrub or small tree, Albizia julibrissin is native to Iran to Japan. It is a fast-growing plant whose seedlings can become invasive. It can be seen growing in the wild in the southeastern U.S. and California in waste places, fields, and along roads.

However, its bipinnate, ferny leaves and fluffy pink flowerheads that cover the tree in summer make it a garden-worthy plant, as do the fragrance emitted by the flowers, which attract bees. Seed pods that resemble flat beans follow the flowers and persist into winter. Still, care should be used so that seeds from garden plants can't escape into the wild.

Alcea rosea Alcea rosea
(Hollyhock)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tall, upright perennial has single flowers of various colors that grow along a spike. It blooms in early summer and midsummer.

Alchemilla alpina Alchemilla alpina
(Alpine lady's mantle)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

About a third the size of the more well known A. mollis, A. alpina has delicate leaves edged in brilliant silver.

Alchemilla mollis Alchemilla mollis
(Lady's mantle)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant has lobed, densely hairy, chartreuse foliage that is crimped at the edges. Soft, frothy, yellow-green foliage hovers above the plant from early summer through autumn.

Allium 'Globemaster' Allium 'Globemaster'
(Ornamental onion)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Allium 'Globemaster' is a true showstopper, growing to about 32 inches tall. Very large, majestic purple spheres up to 8 inches across bear numerous star-shaped, deep lilac flowers in May and June.

Allium caeruleum Allium caeruleum
(Blue globe onion)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant produces dense clusters of bright blue flowerheads up to 1 inch wide. Its leaves clasp its stem and die back before flowering.

Allium cernuum Allium cernuum
(Nodding onion)
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This plant produces open clusters of pinkish purple, droplet-shaped flowers along drooping, arching 2-foot-tall stems. Its foliage is bluish green.

Allium christophii Allium christophii
(Stars of Persia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This bulbous perennial produces ribbed stems and strap-shaped, gray-green basal leaves that decline as its flowers form. In early summer, it bears umbels that are 10 to 12 inches in diameter, and contain up to 100 star-shaped fuchsia flowers with a metallic sheen.

Allium giganteum Allium giganteum
(Ornamental onion)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In summer, this plant bears large rounded flower heads up to 4 inches across with a multitude of star-shaped lilac-pink flowers.

Allium moly and cvs. Allium moly and cvs.
(Golden garlic, Lily leek)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

For long-lasting bright yellow flowers that sparkle in midsummer, try Allium moly. It is robust, hardy, and an excellent cut flower, naturalizing and increasing happily in the sun in most garden soils. The cultivar 'Jeannine' flowers earlier and produces larger umbels on sturdier stems.

Allium schoenoprasum Allium schoenoprasum
(Chives)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The purple or white pom-pom flowers of chives top aromatic stems in summer. The leaves are edible and have a mild onion flavor; the flowers can be used as garnishes. Plants grow in dense clumps to 2 feet high. Use chives in a cottage, herb, or vegetable garden, or in containers.

Allium schubertii Allium schubertii
(Ornamental onion)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant bears 12- to 18-inch blooms with nearly 100 pink-rose flowers. When the flowers are spent, they are replaced by airy, fluffy seedpods.

Allium senescens Allium senescens
(Ornamental onion)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant has thin, strap-like foliage that tends to twist. It produces up to 30 long-lasting, 12- to 40-inch-tall pink or lilac flowers in mid- to late summer.

Allium senescens var. glaucum Allium senescens var. glaucum
(Circle onion)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant's silver-blue leaves swirl like a cowlick. It produces flowers that are lollipop-shaped, pink with bright yellow accents and about 16 inches tall.

Allium sphaerocephalon Allium sphaerocephalon
(Drumstick allium, Round-headed garlic)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The drumstick allium has egg-shaped flowers in summer that start off green, then bloom and develop to pink and then clover red-purple. These plants are attractive in a bed or border, especially peeking up through other plants, such as roses, so that their nondescript foliage is hidden. Their vertical presence and eye-catching flower shape are valuable additions to the garden, and they naturalize freely.

Allium thunbergii Allium thunbergii
(Japanese onion)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is the last of the ornamental onions to flower, when mop-like heads of rose-purple flowers appear with orange anthers. The flowers are impervious to frost or snow. Superior cultivars include ‘Ozawa’, with larger purple flower heads than the species. A white-flowered form known as A. thunbergii ‘Alba’ is a splendid plant, with cup-shaped florets sporting white stamens, yellow anthers, and green centers.

Allium tuberosum Allium tuberosum
(Chinese chives, Garlic chives)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant produces fast-growing, edible, pungent, onion-like leaves. Small, white flowers appear in late summer.

Alocasia micholitziana 'Frydek' Alocasia micholitziana 'Frydek'
(Elephant's ear)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Satiny deep green to black leaves and glowing white veins on 18-inch-long leaves make this elephant's ear great in containers, in a shady border, at the edge of a pond, or as a houseplant. It also has pale stalks with purplish banding. 'Frydek' is very tolerant of a range of soil pH, heat, humidity, and heavy soil. It can even take about a half day of sunlight.

Alstroemeria 'Casablanca' Alstroemeria 'Casablanca'
(Peruvian lily)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Casablanca' Peruvian lily is the closest to white that this genus has gotten as of yet. Inside its amaryllis-shaped white flowers, reddish dashes on a yellow wash and a pale pink throat add interest. 'Casablanca' is also taller than most other Alstroemerias. They make great cut flowers and are frequently used by florists; they also add a tropical feel to beds and borders. Roots are very brittle and care should be taken when planting.

Alternanthera dentata 'Purple Knight' Alternanthera dentata 'Purple Knight'
(Calico plant, Joy weed)
(1 user review)

This dark-leaved, tropical foliage plant loves heat, and is useful spreading through a bed, border, or in a container where its deep purple leaves can contrast with brightly colored flowers or foliage. Alternanthera are native to tropical and sub-tropical areas of Central and South America. Their flowers are generally an afterthought. This plant works well for edging, as an annual groundcover, or in a formal knot garden.

Alternanthera ficoidea 'Red Threads' Alternanthera ficoidea 'Red Threads'
(Joseph's coat, Parrot leaf)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A. ficoidea ‘Red Threads’ is a slender-leaved perennial selection that doesn't wander, forming a textured carpet in shades of deep burgundy. A single plant makes a mound about 8 inches tall and 14 inches wide. It blooms on and off all year, but you may never notice. The small, pale flower buttons are held in the leaf axils, where they are nearly indistinguishable from the foliage unless you're paying close attention. Use 'Red Threads' at the base of taller plants in the border to provide vibrant color echoes or contrasts. Grow as a warm-season annual in cooler climates, mass the plants in beds, or use in a formal knot garden as the Victorians did.

Alternanthera ficoidea 'Yellow Form' Alternanthera ficoidea 'Yellow Form'
(Joseph's coat, Parrot leaf)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Yellow Form' Alternanthera is an easy-to-grow, tropical plant with a fast-spreading habit and pointed, chartreuse-yellow leaves. It forms a mat of color from spring's frost-free date to fall's first frost. Like others of this genus, it makes a great edging, bedding, or container plant. In formal landscapes, it can be used in a knot garden. It looks great with dark-leaved plants.

Amaranthus cruentus Amaranthus cruentus
(Prince's feather, Purple amaranth, Red amaranth)
(1 user review)

Amaranthus cruentus makes a striking statement in beds or borders. Growing to 6 feet in height, it bears somewhat fuzzy-looking spires of purplish red flowers in summer, followed by seed heads that can be red, purple, or yellow. It is native to tropical regions of North and South America, and is one of three Amaranthus species cultivated for their grain.

Amaranthus tricolor and cvs. Amaranthus tricolor and cvs.
(Chinese spinach, Tampala, Joseph's coat)
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This hardy annual has vibrant, ornamental red, yellow, and green foliage that lends a tropical effect to the garden. Small flowers, borne from summer to early autumn, are inconspicuous in comparison to the effect of the foliage. Cultivars feature yellow and maroon-shaded leaves, but the species still offers the showiest foliage.

Amelanchier × grandiflora 'Autumn Brilliance' Amelanchier × grandiflora 'Autumn Brilliance'
(Apple serviceberry)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This shrubby tree has leaves that emerge bronze, mature green, and fade to orange and red in autumn. It bears 3-inch-long racemes of white flowers in spring, followed by edible, juicy blue-black fruit.

Amelanchier alnifolia 'Regent' Amelanchier alnifolia 'Regent'
('Regent' serviceberry)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A compact shrub form of serviceberry, 'Regent' produces finely toothed, rounded leaves that are bluish on top and gray-green on the bottom. In fall, they change to vibrant yellow and red. Spring finds the shrub sporting white flowers in upright clusters that give way to fruit in June. Birds as well as humans appreciate the tasty berries, which make great jellies and jams and are more abundant in full sun. This plant is native to the Great Plains and tolerates harsh, dry, or alkaline conditions when mature.

Ampelaster carolinianus Ampelaster carolinianus
(Climbing Carolina aster)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This perennial vine sends out abundant pale purple to lavender flowers beginning in late October. It grows to 4 to 5 feet tall, and frost does not seem to impede the blooms. It can attract bees and butterflies well into November.

To get the best flower display, give climbing aster as much sun as possible. It should also have something to lean on, like a fence, a trellis, or an ornamental shrub. Don't prune it over the winter, no matter how dead it may look. It’s better to wait to tidy up things after the new growth appears in spring.

Amsonia hubrichtii Amsonia hubrichtii
(Arkansas blue star)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Arkansas blue star's delicate, willow-like foliage is topped with pale blue star-shaped flowers in spring. The light green foliage looks good all summer, turns a beautiful golden-yellow in fall, and can stand through most of the winter, adding interest especially when mixed with grasses and other attractive seedheads. It grows to almost 3 feet tall and wide.

Amsonia montana 'Short Stack’ Amsonia montana 'Short Stack’
(Dwarf blue star)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Chalk up another great plant introduction from the folks at Plant Delights Nursery in Raleigh, North Carolina. This dwarf blue star grows to only about half the size of the species, making it well suited for gardens with limited space. It performs best in full to partial sun and is appreciative of moist, well-drained soil. The sky blue flowers appear in early spring above the clean, dark green foliage. Try planting 'Short Stack' in a mess and along bed edges for a winning display.

Amsonia tabernaemontana Amsonia tabernaemontana
(Willow blue-star)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In addition to willow blue-star’s small but charming clusters of blue flowers in late spring, it has upright, willow-like leaves that turn clear yellow in fall.

Anagallis monellii Anagallis monellii
(Blue pimpernel)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In summer, this colorful groundcover makes a 9-inch mound of saucer-shaped, deep blue flowers on long stalks.

Andropogon zizanioides Andropogon zizanioides
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This beautiful ornamental grass has upright, glossy green foliage and interesting, animated leaf tips that resemble party favors. Evergreen to 25°F, these plants gain reddish purple hues in the fall and winter. This plant is extremely adaptable—it thrives in desert and damp conditions, it is used for erosion control, and it works well in containers or as a screen. It looks especially beautiful when backlit by the sun.

Anemone × hybrida 'Alice' Anemone × hybrida 'Alice'
(Japanese anemone)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This beautiful, pale pink, semi-double-flowered anemone reaches 2 to 3 feet high. The Anemone × hybrida plants are commonly referred to as Japanese hybrids. They're the result of a cross between A. hupehensis var. japonica and A. vitifolia, a tender Himalayan species with grapeleaf-like foliage and white flowers.

Anemone × hybrida 'Honorine Jobert' Anemone × hybrida 'Honorine Jobert'
(Japanese anemone)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tall, woody-based perennial is distinguished by its elegant flowers. This cultivar displays the purity of a single, white, open-faced flower with a delicate center ring of golden yellow stamens. Every moment of floral development from bud to seed brings satisfying interest.

Anemone × hybrida 'Richard Ahrens' Anemone × hybrida 'Richard Ahrens'
(Japanese anemone)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This beautiful, vigorous, pale pink, semi-double-flowering anemone starts blooming in early July into September on 28- to 36-inch stems.

Anemone × hybrida 'Rosenschale' Anemone × hybrida 'Rosenschale'
(Japanese anemone)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This large, single-flowered, pinkish-purple anemone blooms from August to October on stems 24 to 34 inches tall.

Anemone × hybrida 'September Charm' Anemone × hybrida 'September Charm'
(Japanese anemone)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Anemones thrive in light to partial shade but will tolerate full sun, as long as there is sufficient moisture. Site plants in moist, humus-rich soil, but avoid overly wet conditions. Apply mulch annually in northern regions.

Anemone × hybrida 'Whirlwind' Anemone × hybrida 'Whirlwind'
(Japanese anemone)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This beautiful, white, semi-double-flowered anemone reaches 25 to 30 inches tall. An early flowerer, ‘Whirlwind blooms from August to October.

Anemone blanda Anemone blanda
(Grecian windflower)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant produces a great low-growing mat of flowers. The cheerful starlike blossoms come in pink, blue, and white, and the attractive finely cut leaves disappear soon after flowering.

Anemone hupehensis 'Hadspen Abundance' Anemone hupehensis 'Hadspen Abundance'
(Japanese anemone)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant has dark pink, two-toned flowers that occur in abundance and rise above the foliage on branched stems from August to Octover. It is beautiful in the woodland garden or border and planted in masses, although they can overwhelm other plants and become a nuisance in a bed.

Anemone hupehensis var. japonica Anemone hupehensis var. japonica
(Japanese anemone)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Japanese anemones are slightly taller than the species, sometimes growing to 4 feet. The creamy pink flowers with yellow centers rise above the foliage on branched stems from midsummer to autumn. This perennial is beautiful in the woodland garden or border and planted in masses, although they can become weedy in some areas.

Anemone hupehensis var. japonica 'Bressingham Glow' Anemone hupehensis var. japonica 'Bressingham Glow'
(Japanese anemone)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Japanese anemones are slightly taller than the species, sometimes growing to 4 feet. The deep rose-pink semi-double flowers with yellow centers rise above the foliage on branched stems from midsummer to autumn. This perennial is beautiful in the woodland garden or border and planted in masses, although they can become weedy in some areas.

Anemone tomentosa 'Robustissima' Anemone tomentosa 'Robustissima'
(Grape-leaf anemone)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This anemone grows 24 to 32 inches tall with single, light violet-pink flowers. It's an extremely robust and vigorous plant that is best suited to naturalizing. It will overwhelm other plants and may become a nuisance in a bed.

Anemonella thalictroides Anemonella thalictroides
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

These plants are noted for their lovely, 1/2- to 1- inch-diameter crystalline white flowers. Resembling little pinwheels, each flower is composed of 6 to 10 colorful sepals spinning around a nub of lime-green and yellow. Their typical color is pure and bright white, but you might find the tinted soft rose Anemonella thalictroides f. rosea at a specialty nursery.

Anemonella thalictroides 'Rosea' Anemonella thalictroides 'Rosea'
(Rue anemone)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The only member of its genus, rue anemone is a tuberous perennial native to the woodlands of eastern North America. 'Rosea' has pink, fragile, cup-shaped flowers on slender stems from spring to early summer, a long bloom sesaon for a spring wildflower. It often goes dormant in summer. Its flowers resemble a small anemone and its leaves resemble Thalictrum (meadow rue), hence its common name of "rue anemone." Use this delicate, small plant in a shady rock garden, in a woodland or native plant garden, or as underplanting in a shady shrub border

Anethum graveolens Anethum graveolens
(Dill)
(1 user review)

As an herb, A. graveolens is commonly grown for the culinary attributes of its leaves and seeds. Its distinctive foliage texture and flower color and form make this plant a nice companion in a mixed border. It provides a valuable food source for butterfly larvae and attracts beneficial insects also.

Angelica gigas Angelica gigas
(Angelica)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This showstopper produces conspicuous, red-purple leaf sheaths with dense, purple domed flowerheads.

Angelica pachycarpa Angelica pachycarpa
(Angelica)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Angelica is a striking ornamental biennial or short-lived perennial with jade green, glossy, bold leaves and large umbels of white flowers. It makes a unique statement in the garden.

Angelonia angustifolia Angelonia angustifolia
(Angelonia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Upright, low perennial with deep mauve to violet two-lipped flowers blooming all summer. Angelonia are superlative container plants, and can also be grown as bedding annuals.

Antennaria spp. Antennaria spp.
(Pussy-toes, Cat's ears)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Low-growing rosettes of long gray leaves covered in fine gray hairs and gray-white flowers in spring that resemble a cat's paw make Antennaria great plants for edging, pathways, or stone walls.

Anthemis tinctoria Anthemis tinctoria
(Golden marguerite, Oxeye chamomile)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clump-forming perennial produces many weeks of daisy-like flowers in summer. It is great in borders and works well as a cut flower.

Anthericum saundersiae Anthericum saundersiae
(Grass lily, Weeping anthericum)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant's foot-tall clumps produce white lily-like flowers on thin, arching stems. It blooms from late spring into fall; blooms are followed by attractive brown capsular fruits. Its foliage is narrow, linear, and dark-green.

Anthriscus sylvestris 'Ravenswing' Anthriscus sylvestris 'Ravenswing'
(Ravenswing)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is the bronze-purple form of the common Queen Anne's lace. It produces beautiful, highly fringed, lacy foliage in a dusky purple.

Antirrhinum majus Antirrhinum majus
(Snapdragons)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant produces upright racemes of two-lipped flowers with spreading, rounded lobes in a vast arrray of warm colors. It flowers profusely summer through autumn.

no image available Aquilegia alpina
(Alpine columbine)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant bears terminal racemes of two to three nodding blue flowers, sometimes with white tips.

Aquilegia caerulea Aquilegia caerulea
(Rocky Mountain columbine)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Rocky Mountain columbine is a beautiful, hearty, native perennial with blue and white flowers. It self-sows readily.

Aquilegia canadensis Aquilegia canadensis
(Canadian columbine)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This airy perennial has ternate dark green leaves, and produces many nodding flowers from midspring to midsummer. Its scarlet flowers have yellow, downward-pointing sepals.

Aquilegia canadensis 'Corbett' Aquilegia canadensis 'Corbett'
(Columbine, Canada columbine)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This airy perennial has delicate dark-green leaves and many nodding, light-yellow flowers from mid-spring to midsummer. 

Aquilegia chrysantha Aquilegia chrysantha
(Golden columbine, Yellow columbine)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A. chrysantha is a vigorous grower that will add a real burst of color to any southern garden. This southwestern U.S. native has 3-inch yellow flowers in spring and reaches almost 3 feet tall.

no image available Aquilegia flabellata
(Fan columbine)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The fan columbine produces short, plump, nodding, blue-purple flowers with white petal tips.

no image available Aquilegia longissima
(Longspur columbine)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species of Aquilegia is short lived, but its bright yellow, fragrant flowers with elongated spurs will be a vibrant addition to your garden.

Aquilegia vulgaris Aquilegia vulgaris
(Granny’s bonnet)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Usually this plant produces nodding blue and white flowers, but color variation is common in this species.

Aralia spinosa Aralia spinosa
(Devil's walking stick, Hercules club, Angelica tree, Prickly ash)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The textural quality of this eastern native's stems and foliage is superb. During winter, a circle of the thorn-covered stems is as magical as an outdoor sculpture. Dark blue-green compound leaves offer a tropical effect before turning yellow and purple in autumn. One-foot-wide flower clusters sit atop the foliage in summer and transform into purple-black fruits that attract birds. Aralia spinosa grows to 30 feet tall and spreads indefinitely.

Arctostaphylos uva-ursi Arctostaphylos uva-ursi
(Common bearberry, Kinnikinnick)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a fine plant for cascading over the edge of a wall. It's a hardy, prostrate shrub with intricate branching that often forms mats up to 3 feet wide, by runners. Fragrant, white bell-shaped flowers tinged with pink are borne in May and followed later in the season by red berries. The common bearberry's stunning red stems are studded with small, glossy, evergreen leaves.

Ardisia crenata Ardisia crenata
(Coralberry, Spiceberry)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This shrub produces abundant, long-lasting, coral-red to scarlet berries, which stand out against dark-green, glossy leaves.

Argyranthemum frutescens Argyranthemum frutescens
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Argyranthemum is often mistaken for or offered as Chrysanthemum. It is a great plant in containers where it isn't hardy. A. 'Jamaica Primrose' and A. 'Vancouver' will survive in Zones 7-11.

Arisaema triphyllum Arisaema triphyllum
(Jack-in-the-pulpit)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A favorite of children, Jack-in-the-pulpit is a tuberous perennial producing one or two leaves, each divided into three narrow leaflets. But it's best known for its spring to early summer display of hooded, green spathes—Jack's pulpit—which are often striped with purple. Autumn brings clusters of densely packed, showy red berries.

Armoracia rusticana 'Variegata' Armoracia rusticana 'Variegata'
(Common horseradish, Red cole)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant's large, undulating leaves are textured like puckered crepe paper. Moreover, they resemble designer textiles with splendid splashes of cream and dark green. This has to be the queen of variegated plants.

Aronia arbutifolia Aronia arbutifolia
(Red chokeberry)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Fragrant white flowers in spring, red fall foliage, and persistent berries for winter interest make Aronia a valuable plant in all seasons.

Aronia arbutifolia 'Brilliantissima' Aronia arbutifolia 'Brilliantissima'
(Red chokeberry)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is an erect shrub with lustrous dark green leaves that turn scarlet in autumn. It produces numerous white flowers tinged with pink, and abundant showy red berries that persist into winter (birds dislike the taste).

Artemisia 'Powis Castle' Artemisia 'Powis Castle'
(Artemisia)
(4 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a woody plant with dense clumps of silver-gray leaves. It makes a great border accent.

Artemisia absinthium Artemisia absinthium
(Absinth, Wormwood)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Artemisia absinthium is a woody perennial with finely cut, silvery-gray, aromatic foliage. Its small yellow flowers have little ornamental value. Wormwood is useful in beds, borders, and rock gardens, and it makes an excellent foil for bright colors and dark foliage. This plant needs excellent drainage.

Artemisia ludoviciana Artemisia ludoviciana
(Western mugwort)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a high-drama native. Its gracious, high-impact, powdery-white shrubby mounded foliage grows to 4 feet tall.

Artemisia schmidtiana Artemisia schmidtiana
(Silvermound)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant produces a 12-inch-high, symmetrical mound of silver-green, silky-hairy leaves. They make this plant a nice counterpoint to very colorful plants.

Arum italicum Arum italicum
(Italian arum, Orange candleflower)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A. italicum will add great color and diversity to the garden with their attractively marked leaves, which may be arrow- or spear-shaped. Leaves are veined with mid-green to white. In early summer, white spathes of flowers are followed by spikes of bright orange red berries.

Aruncus dioicus Aruncus dioicus
(Goatsbeard, Goat's beard)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Goat's beard is a perennial native to eastern North America and parts of Europe and Siberia. It is grown for its tall stature (up to 6 feet) and showy, cream-colored plumes of flowers in summer. The effect is that of a giant astilbe. Plants with male flowers produce showier and more erect plumes than plants with female flowers, whose plumes are more pendent and less creamy-white. Grow in a woodland garden or moist border, or at waterside.

Asarina scandens Asarina scandens
(Figwort, Creeping snapdragon)
(2 user reviews)

A half-hardy perennial, this sophisticated climber grows to 8 feet tall. It has a profuse show of 1.5-inch indigo, violet, pink, or white flowers. It's great for the cold greenhouse or conservatory, and will often bloom until the end of the year unless there is a hard frost.

Asarum europaeum Asarum europaeum
(European wild ginger)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

European wild ginger is a low-growing groundcover with glossy, evergreen, heart-shaped leaves. Its unusual purple-brown flowers lie mostly concealed beneath foliage.

Asarum shuttleworthii Asarum shuttleworthii
(Evergreen wild ginger)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This wild ginger is an evergreen groundcover with heart-shaped, shiny leaves that are often marbled. Its interesting brown-purple flowers hide beneath the foliage.

Asparagus officinalis Asparagus officinalis
(Asparagus)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Asparagus is a perennial vegetable whose edible shoots are harvested in spring. Male plants produce better crop yields because they do not flower or fruit. The foliage is garden worthy because of its tall size and masses of feathery, delicate texture. Female plants may self-seed abundantly. Plants do not like to be moved, so choose a permanent location. Foliage is useful in floral arrangements.

Aspidistra elatior Aspidistra elatior
(Cast-iron plant)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is an ovate, glossy-leaved plant usually grown as a houseplant. In early summer, it produces fleshy, bell-shaped, cream colored flowers with maroon interiors.

Aster × frikartii Aster × frikartii
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant flowers profusely and for an exceptionally long time, from early summer to mid-fall. Its flowers are violet-blue.

Aster dumosus Aster dumosus
(New York aster, Michaelmas daisy)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a short-growing aster with lilac-blue flowers and creeping rootstocks. Many cultivars exist. It can be used on steep slopes for erosion control.

Aster dumosus 'Wood's Pink' Aster dumosus 'Wood's Pink'
(Bushy Aster, Hardy Aster)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a short-growing aster has creeping rootstocks and pink, daisy-like flowers with yellow centers. It can be used on steep slopes for erosion control.

Aster ericoides Aster ericoides
(Heath aster)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clumping, bushy perennial has slender stems and small, lance-shaped, medium green leaves. From late summer to late fall, it produces white flowerheads with yellow centers to a half-inch across. Its cultivars may bear flowers tinged pink or blue.

Aster lateriflorus ‘Lady in Black’ Aster lateriflorus ‘Lady in Black’
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Although it’s valued for its autumn blossoms, ‘Lady in Black’ creates a stir from the moment its dusky purple leaves unfurl in spring. By summer’s end, thousands of tiny dark buds dot the densely branched 3-foot-tall plant, promising an explosion of color.

Aster macrophyllus Aster macrophyllus
(Bigleaf aster)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This striking, richly-textured, deciduous ground cover has heart-shaped leaves that turn mauve in autumn. Purple, blue, or white flowers appear in late summer to early fall.

Aster novae-angliae Aster novae-angliae
(New England aster)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Strong, almost woody, stems bear large sprays (to 10 inches) of violet-purple flowers.

Aster novae-angliae ‘Purple Dome' Aster novae-angliae ‘Purple Dome'
(New England aster)
(9 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Growing to less than 2 feet tall and wide, 'Purple Dome' covers itself with semi-double, deep purple, daisy-like flowers from late summer to midfall. In addition to being mildew resistant, it attracts butterflies. It's great as a border specimin and as a cut flower.

Aster oblongifolius 'October Skies' Aster oblongifolius 'October Skies'
(October skies aster)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'October Skies' is a dwarf aster that is low to the ground and mounding. It flowers in the fall when most other plants have finished for the season, covering itself with hundreds of dark sky-blue flowers.

Aster tataricus Aster tataricus
(Tatarian aster)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Tatarian aster is an impressive, stately perennial with a flowering height of 3 to 6 feet. It can look you in the eye yet require no staking. More important, this aster flowers longer than any other garden aster, beginning in late September and early October and continuing into November. The 1-inch-wide, light lavender flowers are a magnet for local and migrating monarch butterflies. This plant tolerates many soil types, can form large colonies in a few years, and is easily divided.

Aster tongolensis Aster tongolensis
(East Indies aster)
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This is a mat-forming aster with thick, almost leafless stems that support solitary, violet-blue ray florets and orange-yellow disk florets.

Astilbe chinensis 'Maggie Daley' Astilbe chinensis 'Maggie Daley'
('Maggie Daley' astilbe)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In late spring, lavender-pink flowers rise above this plant’s lacy, fernlike foliage, which forms an airy network beneath. The blooms appear a bit later than typical for other astilbes, and they extend later into summer. ‘Maggie Daley’ is moderately drought tolerant once established. Pair it with Japanese painted fern (Athyrium niponicum var. pictum, Zones 5–8) for a beautiful combination. And deer and rabbit resistance is the pièce de résistance! -Kielian DeWitt, Fine Gardening #147 (Octover 2012), page 76

Astilbe chinensis var. pumila Astilbe chinensis var. pumila
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a dwarf astilbe with attractive red-green leaves and reddish pink flowers in broad, dense conical groups. Its blooms appear mostly in summer.

Astilboides tabularis Astilboides tabularis
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This unique species bears large, rounded leaves that resemble lily pads and seem to defy gravity.

Astrantia major Astrantia major
(Masterwort)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Masterwort produces many small, ivory flowers that are flushed pink and bloom continuously throughout the summer and fall, wafting a sweet scent. Like Queen Anne’s lace, each masterwort blossom is an umbel of tiny flowers, framed by a collar of papery bracts.

Athyrium 'Ghost' Athyrium 'Ghost'
(Ghost fern)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Here's a fern with an upright habit and silvery fronds that give it a ghostly look, hence the name. Emerging new fronds have a shimmering whitish color that darkens slowly to a silvery green with burgundy accents. 'Ghost' spreads slowly by shallow rhizomes, eventuallly becoming an excellent ground cover. -Matt Griswold, Regional Picks: Northeast, Fine Gardening issue #127

Athyrium filix-femina ‘Vernoniae Cristatum’ Athyrium filix-femina ‘Vernoniae Cristatum’
(Crested lady fern)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This small fern is popular and easy to grow. It's suited to the front edge of a border. This cultivar has arching, ruffled fronds that divide into tassels at the ends.

Athyrium niponicum var. 'Pictum' Athyrium niponicum var. 'Pictum'
(Japanese painted fern)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This fern has cool, grey-green, almost silvery, foliage and reddish-purple stalks that are useful for brightening dark spots in borders. It is deciduous, and although it reaches only 8 to 12 inches in height, it is easy to grow, prolific, and easily divided.

Athyrium niponicum var. pictum 'Burgundy Lace' Athyrium niponicum var. pictum 'Burgundy Lace'
('Burgundy Lace' Japanese painted fern)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Burgundy Lace' is a real showstopper in shady borders and containers, with its silvery purple-bronze fronds. The low-growing clumps are a good choice for edging pathways, and the plant looks terrific when planted in groups. 'Burgundy Lace' grows best in humus-rich, moist soil but will also adapt to conditions that are less than ideal. -Chris Kelley, Regional Picks: Midwest, Fine Gardening issue #120

Athyrium niponicum var. pictum 'Ursula's Red' Athyrium niponicum var. pictum 'Ursula's Red'
('Ursula's Red' Japanese painted fern)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The broad silvery leaves of ‘Ursula’s Red’ have a showy burgundy band at the center of the leaves in spring. This plant can double in size in a single growing season, as it spreads from rhizomes. Though deer do like it, it may simply grow more fronds and not show any lasting damage. --Michael Ruggiero, Regional Picks: Mid-Atlantic, Fine Gardening issue #127

Aucuba japonica 'Variegata' Aucuba japonica 'Variegata'
(Gold-dust plant)
(4 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The dense, glossy foliage of this evergreen plant is splattered with yellow. Gold-dust plant can be planted near nearby tree roots, and it responds well to pruning. Combine it with yellow-blooming or variegated plants for appealing color harmonies. -Debra Lee Baldwin, Regional Picks: Southern California, Fine Gardening issue #127

Aucuba japonica Aucuba japonica
(Japanese laurel)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Aucuba are grown for their bold foliage, autumn fruit, and adaptability to shade, dry soil, pollution, and coastal conditions. A. japonica is a rounded, evergreen shrub with small, reddish purple flowers in spring, and red berries (on female plants) in fall. It grows to about 10 feet tall and wide. 'Crotonifolia' has leaves that look like they were speckled with yellow paint. 'Gold Dust' is female with heavy yellow speckling. 'Mr. Goldstrike' is male, more upright, and has gold-splashed leaves. Use as a hedge or specimen, in a container outdoors, or as an imposing houseplant.

Baptisia 'Carolina Moonlight' Baptisia 'Carolina Moonlight'
('Carolina Moonlight' false indigo)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This spectacular perennial hybrid has 18-inch-tall spires of buttery yellow flowers in late spring and beautiful blue-green foliage throughout summer. Tough, exceptionally drought tolerant, and extremely long-lived, it's the southern substitute for the much sought-after lupine. 'Carolina Moonlight' has an adaptable, easy-to-grow nature and makes a great companion for other rugged plants such as ornamental grasses.

no image available Baptisia 'Chocolate Chip'
(Chocolate Chip false indigo)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This perennial produces milk chocolate-colored flowering buds that open in spring with golden yellow petals over blue-green foliage.

Baptisia × variicolor Twilite Prairieblues™ Baptisia × variicolor Twilite Prairieblues™
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This amazing baptisia is a cross between B. australis, the most common blue variety, and B. sphaerocarpa, a plant with yellow bloomer. The result is pea-like violet-purple flowers with dramatic yellow keels. It is long-lived, tough, and drought resistant, but it may take three or four gardening seasons to establish itself. Twilite Prairieblues™ blooms in late spring or early summer, When not in bloom, the plant remains attractive because of the lovely blue-green color of its trifoliate leaves, especially in spring. This plant is tall and will look good at the back of a border. -Stephanie Cohen, Plants to know and grow, Fine Gardening issue #120

Baptisia australis Baptisia australis
(blue false indigo, Plains false indigo)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

False blue indigo's spikes of clear blue flowers in late spring can nearly carry a border by themselves. They also make great cut flowers. Large, inflated nearly black seed pods set in after flowering, giving this plant another interesting element. It is low maintenance and will look great in any natural or informal setting.

Begonia 'Cowardly Lion' Begonia 'Cowardly Lion'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Unlike many other shade garden plants with their cool blue colors, 'Cowardly Lion' rex begonia offers rich warm tones. Chocolate-colored leaf veins veil the golden leaves, which become darker with age and make a fine counterpoint to yellow-based foliage plants. -Rita Randolph, Rex begonias, Fine Gardening issue #120

Begonia 'Escargot' Begonia 'Escargot'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Escargot' takes its name from the snail-like curl pattern at the base of the leaf. The foliage is striking enough to stand on its own but it's a good mixer, too. Use it with other foliage plants and brightly colored blooms. This is an extremely popular Rex hybrid begonia. -Rita Randolph, Rex begonias, Fine Gardening issue #120

Begonia 'Fireworks' Begonia 'Fireworks'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Like other Rex begonias, 'Fireworks' is noteworthy for the coloration of its foliage. Its silvery leaves are edged in purple and have a black burst of fireworks in the center. Use it in a container or shady garden, or grow it as a houseplant. -Rita Randolph, Rex begonias, Fine Gardening issue #120

Begonia 'Green Gold' Begonia 'Green Gold'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The leaves of 'Green Gold' are predominantly silver with deep green veining. New leaves are edged in burgundy. The silver color brightens up shady areas.  'Green Gold' grows vigorously and harmonizes well with other shade plants. -Rita Randolph, Rex begonias, Fine Gardening issue #120

Begonia 'Marmaduke' Begonia 'Marmaduke'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Marmaduke' Rex begonia sports chocolate-colored speckles across golden leaves. The earth tones of 'Marmaduke' go well with solid-colored foliage plants and yellow or rusty-hued blooms. -Rita Randolph, Rex begonias, Fine Gardening issue #120

Begonia 'River Nile' Begonia 'River Nile'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Unlike other Rex begonias, 'River Nile' isn't flashy. Its charm comes from the leaves, which are green and ruffled, with a deep bronze edging. -Rita Randolph, Rex begonias, Fine Gardening issue #120

Begonia 'Stained Glass' Begonia 'Stained Glass'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Stained Glass' is simply stunning. Ruby red leaves are rimmed in pewter with dark veining at the center and a rosy underside. This Rex begonia goes well with pink plants or flowers. -Rita Randolph, Rex begonias, Fine Gardening issue #120

Begonia grandis ssp. evansiana Begonia grandis ssp. evansiana
(Hardy begonia)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tuberous begonia bears green heart-shaped foliage with red veining and claret-stained undersides that steal the show when backlit. Pendent clusters of slightly fragrant, satiny pink or white blossoms open from midsummer until frost. It makes a good perennial companion for ferns and hostas.

Bellis perennis Bellis perennis
(English daisy)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

English daisy bears stems topped with a single white, daisy-like flower. The flowers are tinged maroon and yellow; but cultivars are available with single, semi-double, or double button flowers in shades of white, pink, salmon, and ruby. The plant's smooth, spoon-shaped leaves form neat rosettes. This carpeting perennial is often grown as a biennial. Its many cultivars are used for bedding out or container displays.

Berberis thunbergii 'Golden Nugget' Berberis thunbergii 'Golden Nugget'
(Dwarf Japanese barberry)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Golden Nugget' is a deciduous shrub with non-burning foliage. It is a slow grower (to only about 1 foot tall) and makes a good border plant, especially when planted with darker foliage plants or brightly colored flowers, or a groundcover. Grow in full sun for best color and berry production. It tolerates poor soils as long as drainage is good.The foliage has an orange cast for most of the season, which intensifies in the autumn.

Berberis thunbergii f. atropurpurea Berberis thunbergii f. atropurpurea
(Red Japanese barberry)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Red Japanese barberry is a deciduous shrub with multi-season interest. Most striking are the deep reddish purple inch-long leaves. In spring, scented yellow flowers appear on arching stems. This barberry is an excellent hedge pland, and it also looks good in the middle to rear of beds and borders. Watch out for the brittle, three-pronged thorns. -Gerald Gibbens, Regional Picks: Northwest, Fine Gardening issue#120

Bergenia ciliata Bergenia ciliata
(Winter begonia)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant's leaves are large and bright green, with fine hairs, and grow to about 12 inches across. Small pink flowers emerge in spring, but it's the foliage that really shines.

Bergenia cillata Bergenia cillata
(Hairy bergenia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is the most drought-tolerant bergenia I’ve found and the only one that does well in Texas heat. The large, hairy, critter-resistant leaves do not resemble other members of this genus; they look more like hairy plates or giant African violet leaves—hence, it’s common name. Mature plants will send up 10-inch-long stems of white to pale pink flowers from spring to early summer, but the real reason to grow this plant is its remarkable foliage.
In cooler regions, hairy bergenia grows not only in the shade but also in full sun. It isn’t particular about soil type or pH. Divide plants every three to five years to keep them vigorous. -Jimmy Turner, Perennials for dry shade, Fine Gardening issue #133

Bergenia cordifolia Bergenia cordifolia
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant is noted for its beautiful bronze fall foliage. Its leaves are rounded to heart-shaped and sometimes puckered, growing to about 12 inches. It bears pink to rose-red flowers on red stalks in late winter to early spring.

Beta vulgaris 'Bull's Blood' Beta vulgaris 'Bull's Blood'
(Beet)
(1 user review)

This heirloom beet from 1840 is primarily grown for its tender, sweet, deep red-burgundy foliage, but the beets are tasty when harvested at the 2- to 3-inch size. The glossy leaves reach 18 inches high. Though it is edible, it is often grown as an ornamental, and its dark leaves contrast nicely with many garden plants.

Beta vulgaris 'Ruby Red' Beta vulgaris 'Ruby Red'
(Swiss chard)
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This is a sweet Swiss chard with beautiful candy-apple-red stalks and dark green, crinkly leaves with touches of red. Both the leaves and the stalks are very ornamental and 'Ruby Red' is great in a vegetable or cottage garden, or in an ornamental bed or border. It is especially attractive when grown with plants whose colors call attention to the red coloring. Although related to beets, the root is inedible, but the leafy greens are valued for their mild flavor and high nutritional value.

Bignonia capreolata 'Tangerine Beauty' Bignonia capreolata 'Tangerine Beauty'
('Tangerine Beauty' cross vine)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A better-behaved cousin to the less-than-polite trumpet vine, cross vine is a colorful solution for a fence or arbor with afternoon shade. Although this east Texas native is slow to establish, ‘Tangerine Beauty’ sports brighter, showier flowers than other cultivars and will reward your patience with loads of orange blooms in both spring and fall. Flowers bloom on old wood, so prune this vine immediately only after blooms fade. -Leslie Finical Halleck, Fine Gardening #147 (October 2012), page 74

Bletilla striata and cvs. Bletilla striata and cvs.
(Chinese hardy orchid)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The first time you see a Chinese hardy orchid flowering you kind of rub your eyes: Did a garden fairy drop her corsage after the prom? It really is a perennial here, which flowers in late spring to early summer, with three to seven flowers atop each wiry stem. The foliage is beautifully pleated, and happy plantings slowly grow into sizable clumps. -Irvin Etienne, Fine Gardening #147 (October 2012), page 72

Boltonia asteroides Boltonia asteroides
(False chamomile)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Boltonias are vigorous perennials grown for their sprays of aster-like flowers, which appear above clean, gray-green foliage. Their vigorous nature makes them suitable for naturalizing. They are also great in the border (and for cutting), but will benefit from frequent dividing to keep in bounds, and may be cut back in late spring for more compact plants.

Boltonia asteroides 'Snowbank' Boltonia asteroides 'Snowbank'
(False chamomile)
(1 user review)

Boltonias are vigorous perennials grown for their sprays of aster-like flowers, which appear above clean, gray-green foliage. Their vigorous nature makes them suitable for naturalizing. They are also great in the border (and for cutting), but will benefit from frequent dividing to keep in bounds, and may be cut back in late spring for more compact plants. 'Snowbank' produces masses of white flowers in late summer.

Borago officinalis Borago officinalis
(Borage, Cool-tankard, Talewort)
(1 user review)

These fast-growing plants with succulent, bristly stems are old-fashioned favorites of the border or herb garden. They self sow to produce a succession throughout the season of new plants and blossoms. The beautiful flowers are edible and are particularly bequiling on salad or floating in summer drinks. 

Bouteloua gracilis Bouteloua gracilis
(Blue grama, Signal-arm grass, Mosquito grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Blue grama is a perennial grass from the Americas bearing unusually bent and flattened inflorescences. Being native to open grasslands, they are drought tolerant and at home in meadows. They provide the garden with shades of tan that persist throughout winter. 

Bouteloua gracilis 'Hachita' Bouteloua gracilis 'Hachita'
('Hachita' Blue Grama Grass)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Hachita' has narrow, blue-green leaves that form dense mounds. In summer, elongated seedheads add visual interest. This tough, drought-tolerant grass thrives in sand or clay soil with full-sun exposure. It needs a setting with good drainage, as it won't thrive in wet conditions. -Scott Vogt, Native grasses, Fine Gardening issue #124

Brachycome 'Blue Zephyr' Brachycome 'Blue Zephyr'
(Swan River daisy)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Swan River daisy's lacy foliage and small but profuse blue-purple flowers have a long season of impact in the garden. Its compact, bushy shape, pretty fragrant flowers, and gray-green leaves make it attractive from planting time through frost. It flowers so heavily that the foliage is often obscured. 'Blue Zephyr' has especially fine foliage and only reaches about a foot high. It is excellent in hanging baskets, window boxes, or other containers, or at the front of a bed or border.

Brassica oleracea Brassica oleracea
(Ornamental cabbage, Ornamental kale)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Rosettes of cabbage foliage are grown as annuals for fall and winter interest. Color intensifies in cooler temperatures (below 50°F). Good for bedding and containers.

Breynia disticha 'Roseo-picta' Breynia disticha 'Roseo-picta'
(Snow bush)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The white- and pink-mottled leaves of 'Roseo-picta' make it appear as if the plant has been snowed upon, even though it is a tropical plant. It is an evergreen shrub growing to 3 feet or more with pink and red stems in zigzagged formation. Native to Pacific islands, it is grown as an indoor plant or perennial, or as an annual in cooler climates. The tiny flowers go generally unnoticed. Do not allow the soil to dry out, as leaf drop will occur.

Broussonetia papyrifera 'Golden Shadow' Broussonetia papyrifera 'Golden Shadow'
(Golden paper mulberry)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This golden-leaved version of the southern paper mulberry can be treated as a cutback shrub to control size and for best production of brilliant golden yellow, large, lobed leaves. Or it can be allowed to grow into a small- to medium-sized tree. It's a most desirable garden plant and looks fabulous with deep blue salvias.

Browallia americana Browallia americana
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant produces distinct, 2-inch blossoms primarily in rich blue (but also in shades of purple and white), with dark eyes smudged white. It is suitable for sun and partial shade.

Brugmansia 'Charles Grimaldi' Brugmansia 'Charles Grimaldi'
(Gold angels' trumpets)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Foot-long blossoms are nocturnally fragrant, and pour out from narrow calyces of light yellow, to terminate in fluted, reflexed openings the hues of golden summer squash.

Brugmansia suaveolens Brugmansia suaveolens
(Angels' trumpet)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Few plants evoke tropicalia quite like the Brugmansias, with their voluminous tubular flowers that drip from imposing shrubs or small trees. They look fantastic in containers or plunged into a border, and the dramatic display persists from late spring until autumn. In cooler climates, they may be brought under glass or cut back and held dormant in a cool basement.  All parts are highly toxic if ingested.

Brugmansia suaveolens 'Pink Delight' Brugmansia suaveolens 'Pink Delight'
(Angels' trumpet)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Foot-long, rich pink blossoms are nocturnally fragrant and pour out from narrow calyces to terminate in wide, flared openings.

Brunnera macrophylla Brunnera macrophylla
(Siberian bugloss)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This woodland plant is valued for its flowers and groundcovering leaves. Terminal clusters of delicate blue flowers appear in spring. 

Brunnera macrophylla 'Jack Frost' Brunnera macrophylla 'Jack Frost'
(4 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This woodland plant is valued for its flowers and its heart-shaped, ground-covering leaves. Its small blue flowers go nicely with ephemeral bulbs in mid- to late spring,  as the enlarging leaves block out the ripening bulb foliage. 'Jack Frost' can take dry summers and wet winters. This cultivar is prized for its improved tolerance of heat and sun. -Marty Hair, Regional Picks: Upper Midwest, Fine Gardening issue# 127

no image available Brunnera macrophylla 'Langtrees'
(Siberian bugloss)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This woodland plant is valued for its flowers and heart-shaped, groundcovering leaves. 'Langtrees' can take dry summers and wet winters. This cultivar is prized for its improved tolerance of heat and sun.

Brunnera macrophylla 'Looking Glass' Brunnera macrophylla 'Looking Glass'
(Siberian bugloss)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This brunnera cultivar has a silvery, heart-shaped leaves that are mostly everygreen. Delicate blue flowers emerge in spring. Drought tolerant once established, ‘Looking Glass’ brunnera requires little watering and is fairly resistant to pests. This cultivar grows to a little more than a foot tall and almost as wide. Use it in a woodland or shade garden, in a container, or at waterside. -Sylvia Matlock, Regional Picks: Northwest, Fine Gardening issue #127

Buddleia 'Lochinch' Buddleia 'Lochinch'
(Butterfly bush, Summer lilac)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Butterfly bushes are carefree deciduous shrubs that are reliably fragrant and easy to grow. Butterflies swarm to their blooms all summer long. 'Lochinch' has extremely fragrant lilac-blue flowers with orange eyes. It is a cross between B. davidii and B. fallowiana. Its arching, mounded habit typically reaches 3 to 5 feet in one season, but can grow much taller in the deep South. The 8-  to 12-inch-long flower spikes begin in late summer and bloom until frost, starting a little later than the B. davidii cultivars.

Buddleia davidii Buddleia davidii
(Butterfly bush, Summer lilac)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This sun-lover comes in hues from pure white to deepest purple. From midsummer until frost, butterfly bush earns its name as hordes of winged beauties flit from flower to flower in search of nectar. The lanceolate leaves are 10 to 12 inches long and white or grayish underneath. The honey-scented flowers are deep purple and grow in spikes, from July to October.

Buddleia davidii 'Black Knight' Buddleia davidii 'Black Knight'
(Butterfly bush, Summer lilac)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Butterfly bushes are carefree deciduous shrubs that are reliably fragrant and easy to grow. Butterflies swarm to their blooms all summer long. 'Black Knight' has deep purple-blue, almost black, flowers in elongated clusters on arching branches to 10 feet tall if not cut back, and half that size if cut back. The blooms come from early summer to first frost. The foliage is willow-like and grayish green.

Buxus sempervirens 'Green Mountain' Buxus sempervirens 'Green Mountain'
(Boxwood)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This upright, oval, dark green boxwood grows to about 3 feet high and wide. It flowers in spring, but it is grown for its handsome foliage. Use as hedging or topiary, or in a border.

no image available Cacalia atriplicifolia
(Pale Indian plantain)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The heart-shaped leaves of this perennial may stretch to 12 inches across. In mid- to late summer, showy white flower umbels add to this plant’s drama.

Caladium bicolor 'Freida Hemple' Caladium bicolor 'Freida Hemple'
(Angel wings, Elephant's ears, Heart of Jesus, Mother-in-law plant)
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C. bicolor is a tuberous-rooted perennial of garden origin often grown in containers, as annuals, and as indoor plants. The large, heart-shaped leaves of 'Freida Hemple' caladium are edged in bright green and have bold red centers. Caladiums are excellent choices to add color, texture, and form to shady areas.

Caladium bicolor 'White Queen' Caladium bicolor 'White Queen'
(Angel wings, Elephant's ears, Heart of Jesus, Mother-in-law plant)
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A tuberous-rooted perennial most often grown as an annual or a houseplant, 'White Queen' has large frosted-looking white leaves that have green margins and bright red veins that "bleed". A great plant for full shade, it can also be grown in sun if provided with consistently moist soil. Greenish-white flower spathes appear in spring and are followed by white berries, but the foliage is the main show. Its arrow-shaped leaves light up a dark spot and work well as bedding or in containers. It can also be grown as a houseplant and tubers can be overwintered indoors.

Calamagrostis × acutiflora 'Karl Foerster' Calamagrostis × acutiflora 'Karl Foerster'
(Karl Foerster's Feather Reed Grass)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Versatile, attractive and care-free ornamental grass with wheat-like appearance. Slender, upright, deep-green, lustrous foliage becomes effective by early spring and lasts all the way until winter. A cool season grass, 'Karl Foester' is upright and clump forming, with purplish-green, feathery plumes to 6'. It distinctively blooms in early summer rather than fall and must have winter chill to bloom. Long lived -- 25 years or more. -Santa Rosa Gardens

Calamintha grandiflora 'Variegata' Calamintha grandiflora 'Variegata'
(Calamint)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A well-behaved perennial from the mint family (Lamiaceae), variegated calamint has pale-green, oval leaves with strong white marbling. It sends up a wealth of clear-pink tubular flowers that muster an army of bees, butterflies, and hummingbirds from mid- to late summer. It’s eye-catching both in and out of bloom and has a wonderful minty fragrance all season long.

Calamintha nepeta Calamintha nepeta
(Lesser calamint)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Lesser calamint produces fine, upright stems which are covered with small, shiny, dark green leaves, forming a little bush from 12 to 18 inches tall, and twice as wide. In late August, it produces a cloud of infinitesimal pale lavender flowers that continue blooming for up to six weeks. As the days become cooler, the color of the tiny, lipped blossoms deepens.

Calendula officinalis Calendula officinalis
(Pot marigold)
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Pot marigolds bloom most of the summer, but are intolerant of intense heat and may die out during periods of hot humid weather. Their branching stems are covered with simple, alternate leaves and they produce large flowers in different hues of yellow and orange in the summer.

Calibrachoa 'Callie Rose Star’ Calibrachoa 'Callie Rose Star’
(Callie Rose Star)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This rose-and-cream Calibrachoa is one of a kind. The unique markings on the petals and the plant's mounding habit make it a standout in hanging baskets and containers.

Calibrachoa 'Superbells Tequila Sunrise' Calibrachoa 'Superbells Tequila Sunrise'
(Millon bells, Trailing petunia)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Calibrachoa is a relatively new genus of flowering plants. The first cultivars weren't released until 1992. This cultivar's self-cleaning, petunia-like flowers are painted in a sunny mix of orange, red, and yellow. It is an easy-to-grow, trailing perennial, often used as an annual in hanging baskets, window boxes, and other containers.

Calibrachoa Superbells® Dreamsicle Calibrachoa Superbells® Dreamsicle
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Calibrachoas are great alternatives to petunias. Superbells® Dreamsicle is cloaked with larger-than-usual, yellow-throated apricot-orange flowers. It can create a carpet of color or cascade beautifully from a container.

Callicarpa americana Callicarpa americana
(American beautyberry)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Although it produces small, lavender-pink flowers in spring, this plant is known mainly for its violet to magenta berries, which start appearing in October. The berries, massed in tight bunches that encircle the branches, are vivid against deep-green leaves.

Callicarpa dichotoma Callicarpa dichotoma
(Purple beautyberry)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Grown for its rows of lilac-violet, round, glossy, tiny fruit, purple beautyberry is a small, deciduous shrub native to China, Korea, and Japan. Its long, arching branches often touch the ground, giving it an elegant shape. The small pink flowers in summer are followed by the small fruits that ripen in September and last through October. It has good yellow fall color as well.

Callirhoë involucrata Callirhoë involucrata
(Wine-cups)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant resembles a rosy-purple poppy mallow that blooms all summer. The saucer-shaped flowers are held above prostrate red stems and fingered leaves.

Calycanthus floridus Calycanthus floridus
(Carolina allspice, Strawberry shrub, Common sweetshrub)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This deciduous shrub has a dense, rounded habit, growing 6 to 9 feet tall and as wide. Its unusual, waterlily-like, fragrant flowers combine the scent of strawberries, banana, and pineapple. Flowers appear in May and continuing blooming on and off into June and July. The dark green leaves and bark release a clove or camphor-like scent when crushed.

Camassia leichtlinii ssp. suksdorfii 'Blue Danube' Camassia leichtlinii ssp. suksdorfii 'Blue Danube'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Spikes of violet, star-shaped flowers top stems reaching from 2 to 4 feet in late spring. The species is native to western Oregon. 'Blue Danube' would be beautiful in a border, meadow, or containers. Camassia make good cut flowers.

Campanula 'Elizabeth' Campanula 'Elizabeth'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Starting in early summer and continuing until fall, 'Elizabeth' puts forth abundant purple-flushed, pale pink bells with dark speckles on the inside. Flowers are 2 to 3 inches long and lightly scented. The toothed leaves are bright green. This low-maintenance, hardy perennial retains its evergreen foliage through winter.

By late fall, as the older crowns die out, new rosettes of leaves appear at the ends of underground rhizomes, giving the illusion that the plants have moved. This is not a desirable trait in formal beds, but it's an asset in naturalized plantings. 'Elizabeth' does well under deciduous trees and shrubs, in cottage and rock gardens, and along paths that leat into the woods. -Ruth Rogers Clausen, Plants to know and grow, Fine Gardening issue #121

Campanula carpatica Campanula carpatica
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Upright, open bell-shaped flowers completely cover the foliage of this late-blooming Campanula for several months in summer. This small plant is suitable for the front of the border or a rock garden. Numerous cultivars are available.

Campanula cochleariifolia Campanula cochleariifolia
(Fairies’ thimbles)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Diminutive (to 2 inches tall) spikes bear lavender-blue nodding flowers that sway in the breeze.

Campanula medium ‘Calycanthema’ Campanula medium ‘Calycanthema’
(Canterbury bells, Cup and Saucer)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This 2- to 3-foot-tall bellflower bears single or double flowers in white, blue, or pink. 

Campanula persicifolia Campanula persicifolia
(Peach-leaved bellflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant is one of the most popular campanulas. Its stiff mat of slowly spreading evergreen rosettes is topped by 3-foot-tall, all open, bell-shaped lavender to white flowers in late spring.

Campanula portenschlagiana Campanula portenschlagiana
(Dalmatian bellflower)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This low, mat-forming plant has blue-purple flowers in summer.

Campanula poscharskyana 'Blue Waterfall' Campanula poscharskyana 'Blue Waterfall'
(Serbian bellflower)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Serbian bellflowers have an easy, undemanding habit. Creating a stream of lavender blue, the 1-inch-diameter star-shaped blossoms bloom reliably from late spring to early fall. The foliage remains evergreen in mild winters and needs to be sheared only once in a while to keep its appearance tidy. 'Blue Waterfall' flows beautifully along bed edges and through rock gardens in full sun to partial shade.

Campanula punctata Campanula punctata
(Spotted bellflower)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Spotted bellflower has heart-shaped foliage on a creeping rhizome with tubular, bell-shaped creamy white to dusky pink flowers with red spots and hairs. This foot-tall bellflower is native to Siberia and Japan.

Campsis radicans Campsis radicans
(Trumpet creeper)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Trumpet creeper is a vigorous climber with clusters of  trumpet-shaped orange to red flowers from late summer to autumn.

Canna 'Centenaire de Rozain-Bourcharlat' Canna 'Centenaire de Rozain-Bourcharlat'
(Indian shot)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This 3-foot-tall canna from the 1920s has impossibly deep, pure-rose flowers recalling orchids and leis. It's an old French variety.

Canna 'Erebus' Canna 'Erebus'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Each of this plant's stunning lance-shaped leaves is the softest gray-green, edged subtly with a cream-colored pinstripe. These luminous 5-foot-tall plants are crowned with spires of delicate pink flowers with just a blush of salmon.

Canna 'Madame Paul Caseneuve' Canna 'Madame Paul Caseneuve'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A great canna to start with if you're convinced you hate them is 'Madame Paul Caseneuve', from 1902. The pearly-bronze leaves and almost purple stems of this 3- to 5-foot-tall antique beauty are the perfect foil for its elegant, sensual flowers of soft pink shading to peach and apricot.

Canna 'Sémaphore' Canna 'Sémaphore'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Growing to 6 or 7 feet, 'Sémaphore' features slender, dark-bronze leaves topped by spikes of narrow-petaled flowers of an unusual glowing color that's not quite yellow and not quite orange; perhaps flickering tongues of flame would be the best description. It is a Victorian classic from 1895.

Canna ‘Phasion’ Canna ‘Phasion’
(Tropicanna® canna)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This vigorous 5- to 6-foot plant sports fascinating foliage colors. Spring leaves emerge an intense purple and are soon striped with green, yellow, pink, and red. Vivid orange flowers appear in summer on this quick multiplier.

Canna × generalis Canna × generalis
(Indian shot)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cannas bear broad, smooth paddle-like leaves reminiscent of banana plants. The oversize leaves make it easy to create dramatic combinations with other, more finely textured plants. Each stout, fleshy stem is topped with attractive spires of brightly colored flowers. Cultivars vary widely in height, foliage, and bloom.

Canna var. “MACtro’ Canna var. “MACtro’
(Canna Tropicanna Gold )
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Tropicanna Gold is perhaps the showiest of all of the variegated cannas and one of the best for hot, humid, sunny southern gardens. Favored for its bright green and yellow variegated foliage and deep tangerine flowers, Tropicanna Gold will grow at the edge of ponds in shallow water as well as in normal garden conditions. It is adaptable to heat and humidity. Protect in the northern part of its range, or lift tubers in fall where not hardy and store over winter.

Capsicum annuum 'Black Pearl' Capsicum annuum 'Black Pearl'
(Ornamental pepper)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This pepper boasts the most dramatically deep purple-black leaves and fruit imaginable. The vigorous, bushy plants grow to 18 inches tall and almost as wide. Flowers are lilac, and dark black peppers emerge in fall.

no image available Cardamine laciniata
(Cut-leaved toothwort)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cut-leaved toothwort has sharply cut foliage and single white, lavender, or pink nodding flowers that bloom in early spring. Evergreen forms exist.

Carex buchananii Carex buchananii
(Leatherleaf sedge)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Two-foot-tall, stiff, orange-brown blades curve at the end like a shepherd’s staff. Burnished red-bronze foliage, which fades to flax at the tips, gives off a warm glow when backlit by the sun.

Carex divulsa Carex divulsa
(Berkeley sedge)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This sedge is one of the most adaptable of the ground-cover grasses. Its ability to look the same in sun or shade makes it a valuable asset in plantings that go in and out of full sun. Berkeley sedge is a good solution for areas under stress where lawn grasses often fail. The flowers are not particularly noteworthy.

Carex elata 'Aurea' Carex elata 'Aurea'
(Bowles' golden sedge)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This beautiful sedge's vivid foliage adds bright color to the garden. The yellow seems to glow in partial shade. Use this dramatic clump of foliage near water or in shallow water, or in another moist location.

Carex morrowii 'Ice Dance' Carex morrowii 'Ice Dance'
(Variegated sedge)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Ice Dance' is a dense, spreading sedge grown for its foliage. This sedge looks good year round, even in winter.The early-spring flowers are insignificant, but the white-edged leaves complement most other plants. Grow as a groundcover in woodland areas or in a shade garden. This sedge is evergreen in warm climates. -Jane Hutson, Regional Picks: Midwest, Fine Gardening issue# 127

Carex plantaginea Carex plantaginea
(Seersucker sedge)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Seersucker sedge is an evergreen, spreading sedge with narrow brown-black flowers on 8-inch stems in spring. Its wide, puckered foliage is shiny and bright green, reaching over a foot long. This sedge is native to rich woods of the eastern U.S. and makes a nice edger or accent plant.

Carex siderosticha 'Variegata' Carex siderosticha 'Variegata'
(Broad-leaf sedge)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This sedge's pearly, straplike leaves resemble striped ribbon waiting to be wrapped around a package. It sports fuzzy green flowers with green stamens in late spring. Grow as an edging or groundcover.

Carica papaya Carica papaya
(Papaya)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The papaya is a herbaceous, fast-growing shrub that grows best in tropical and subtropical climates where it will flower continually, but it will perform in colder climates from high summer to early fall. It offers a striking sculptural presence to the landscape due to its lobed, 2-foot-across leaves and large, delicious fruit (sometimes reaching 20 pounds).

Caryopteris × clandonensis Caryopteris × clandonensis
(Blue beard, Blue-spirea, Blue-mist shrub )
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

These plants can take worst of the a hot summer (heat, lack of water, and humidity) and still manage to perform well. They generally live four to five years before they need replacing, but during that time, they offer dependable foliage and pretty blue flowers from mid- to late summer. Blue-mist shrubs form low-growing, finely-textured mounds and are deer-resistant.

Caryopteris × clandonensis 'First Choice' Caryopteris × clandonensis 'First Choice'
(Blue beard, Blue-mist shrub)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'First Choice' is ideal for a mixed or shrub border. It's an attractive woody shrub with dark green leaves, dark purplish blue flowers, and a compact habit. Misty blue flowers appear in late summer and early autumn.This plant is relatively drought tolerant and very heat tolerant. The shrub expands as branches that touch the ground form their own roots and may self-seed.

Caryopteris × clandonensis 'Longwood Blue' Caryopteris × clandonensis 'Longwood Blue'
(Blue beard, blue-mist shrub)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Longwood Blue' is ideal for a mixed or shrub border. It's an attractive woody shrub up to 3 feet tall and 5 feet wide with silvery leaves and violet-blue flowers.. The flowers appear along the stems in late summer and early autumn.This plant is relatively drought tolerant and very heat tolerant. The shrub expands as branches that touch the ground form their own roots and may self-seed.

Caryopteris × clandonensis 'Worcester Gold' Caryopteris × clandonensis 'Worcester Gold'
(Blue beard, Blue-mist shrub)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Worcester Gold' is an attractive, mounding, woody shrub with warm yellow to chartreuse foliage and lavender-blue flowers in late summer and early autumn. The flowers are fragrant and attractive to bees and butterflies. The foliage is also aromatic. It is ideal for a mixed or shrub border.

Caryopteris incana 'Jason' Caryopteris incana 'Jason'
(Sunshine blue bluebeard)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Jason' has bright yellow-green foliage with rich amethyst blue flowers in late summer and fall. It's a vigorous grower for a mixed border or mass planting in sunny areas.

Catharanthus roseus 'Peach' Catharanthus roseus 'Peach'
(Madagascar periwinkle, Old maid)
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A tender perennial native to Madagascar, most often grown as an annual, Catharanthus roseus has attractive, glossy foliage and a bushy form that is covered by phlox-like flowers from summer to first frost. It is a very popular bedding plant and works in containers as well. Many cultivars are vividly colored, but 'Peach' has subtle pale pink-peach flowers with a darker eye.

Catharanthus roseus Cora™ series Catharanthus roseus Cora™ series
(Cora™ periwinkle, Cora™ vinca)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The disease-resistant Cora™ series of periwinkles comes in a range of flower colors—from white to lavender to burgundy—and looks great until the first fall frost.

Ceanothus americanus Ceanothus americanus
(Mountain sweet, New Jersey tea, Redroot, Wild snowball)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Mountain sweet is a low-growing, broad, compact, deciduous shrub. Dark-green leaves are irregularly toothed, 2 to 3 inches long, and softly hairy or nearly hairless beneath. This plant bears profuse white flowers in 1- to 2-inch-long terminal clusters.

Celastrus orbiculatus Celastrus orbiculatus
(Oriental bittersweet, Staff vine)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Oriental bittersweet is a vigorous, woody, deciduous climber with rounded mid-green leaves that turn yellow in autumn. It bears small green flowers in summer and axillary clusters of bead-like red berries with contrasting yellow casings in the fall. Fruit splits open to reveal pink to red seeds.

Celosia cristata 'Century' Celosia cristata 'Century'
(Plumed celosia)
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The flowers of this celosia cluster together in great numbers and look like silky, feathery plumes in vivid hues of yellow, red, magenta, or apricot. The plumes rise above the foliage on 2-foot-tall stalks, which wave their flags of color in the breeze from July to frost.

Centaurea cineraria 'Colchester White' Centaurea cineraria 'Colchester White'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Best used as a foliage plant, this plant's intricately cut, frosty-silver leaves produce a large, elegant arching mound. It also bears pale lavender-blue pin-cushion flowers on lanky 30-inch stems in late spring.

Centaurea cyanus Centaurea cyanus
(Bachelor's buttons, Bluebottle, Cornflower)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Bachelor's buttons bear charming and prolific flowers in hues of blue, pink, lavender, white, and maroon. Those with a true blue color are especially welcome in the garden as that color is rare in nature. Each disc-shaped flower is about 1.5 inches across, with ragged petals radiating out from the center.

Centaurea montana Centaurea montana
(Mountain bluet)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Mountain bluet is an excellent choice for the border or rock garden. Blue flowers open from attractive buds in late spring to midsummer, then leave behind a mass of vigorous, silvery-green woolly foliage and woolly stems.

Centaurea montana ‘Amethyst in Snow’ Centaurea montana ‘Amethyst in Snow’
(Mountain bluet)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The blooms of this familiar perennial are not the standard blue; instead, they’re a striking silky white with royal purple centers. The flowers appear in late spring, then leave behind a mass of vigorous silvery green foliage.

no image available Centranthus ruber
(Red valerian, Jupiter's beard, Keys of heaven)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clump-forming perennial has deep to mid-green leaves and dense clusters of small white, pale rose-pink, or dark crimson flowers in long, slender stems. It blooms from late spring to late summer.

Cephalanthus occidentalis Cephalanthus occidentalis
(Buttonbush, Button willow, Honey balls)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A native small tree found in wetlands from Minnesota to Florida and from New England to California, buttonbush can reach 8 to 15 feet tall and is often wider than it is tall. Prune it into a small multi-trunked tree to reveal the curly bark of its young stems and the punctuated pale spots of its older stems. Blooms are extremely rich in nectar and attract butterflies and other insects.

Cephalotaxus harringtonii 'Prostrata' Cephalotaxus harringtonii 'Prostrata'
(Plum yew)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This slow-growing dwarf conifer has a wide, rounded crown and narrowly furrowed, partially peeling bark. Needles, 1 to 1.5 inches long, are arranged on V-shaped ranks on each shoot.

Cerastium tomentosum Cerastium tomentosum
(Snow-in-summer)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Snow-in-summer is great for rock gardens and dry areas, and also works well as a container plant. Plant it on a stone wall for a cascading effect. Snow-in-summer needs room to perform. A single plant can carpet an area as wide as a yard across. After the flowers fade, the silver/grey foliage shines on in contrast to more predictable shades of green.

Ceratostigma plumbaginoides Ceratostigma plumbaginoides
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This lovely herbaceous species is versatile and undemanding. It is the star of the late-summer garden with its spiky bright red flower buds and vivid blue flowers, displaying long-lasting mahogany red foliage in fall. Spreading slowly via underground runners, this long-lived plant makes a solid mat with erect, slender red stems and bright green leaves.

Ceratotheca triloba Ceratotheca triloba
(South African foxglove)
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A rare and graceful beauty, this plant is not a true foxglove, but its flowers are similarly shaped and hang in clusters. They come in shades of white and pink with pale violet stripes highlighting the inner throats. This plant’s soft coloring brings the delicacy typical of spring-blooming plants into the summer garden. The gray-green foliage has a distinctly nutty fragrance and is deer resistant. As a large-scale plant, South African foxglove holds its own when planted among shrubs and is best complemented by plants with deep purple foliage. It also makes a good cutting flower.

Cercis canadensis 'Forest Pansy' Cercis canadensis 'Forest Pansy'
(Eastern redbud)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In early spring, 'Forest Pansy' awakens with a long-lasting profusion of bright purplish-pink blooms borne in clusters, before the leaves, along smooth gray branches. Its heart-shaped, blood-red leaves are finely veined and glossy when young, slowly turning a dark, purple-tinged green in full sun. Autumn foliage is a bouquet of reds, purples, oranges, and yellows. The plant's graceful branching structure stands out in winter.

Cerinthe major ‘Purpurascens’ Cerinthe major ‘Purpurascens’
(Blue shrimp plant)
(1 user review)

Though subtly colored, Cerinthe major ‘Purpurascens’ draws comment wherever it inserts itself. The steely purple bracts and leathery gray foliage of this annual seem extraterrestrial poking up among more conventional herbaceous plants. It is an annual from the Mediterranean region with leaves like a eucalyptus and flowers like a purple euphorbia. This plant produces large black seeds that drop to the ground in late summer and germinate in fall to start the cycle all over again if growing conditions are right.

Cestrum 'Orange Peel' Cestrum 'Orange Peel'
('Orange Peel' cestrum)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A wonderful hybrid derived from Cestrum diurnum and C. nocturnum, 'Orange Peel' is a veritable living bouquet of pure orange blossoms that, in warmer climates, begin with the first mild days in spring and last until the first hard frost. The tubular flowers have no fragrance during the day, but as soon as the sun sets, a sweet scent lingers in the air. In Zones 8 and warmer, 'Orange Peel' will be a deciduous shrub 6 feet tall and wide. In Zone 7, it will act as a die-back perennial and easily reach 3 to 5 feet tall and wide during the growing season. In colder zones, it makes an incredible summer-blooming annual.

Chaenomeles × superba ‘Texas Scarlet’ Chaenomeles × superba ‘Texas Scarlet’
(Flowering quince)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

One look at ‘Texas Scarlet’ flowering quince in bloom and most gardeners are instantly sold. Though the display only lasts a week or two in early spring, the sight of the tomato-red flowers is unforgettable. During the rest of the season, ‘Texas Scarlet’ remains a wave of glossy green leaves that reaches 2 to 3 feet tall in the toughest of conditions.

Chamaecrista fasciculata Chamaecrista fasciculata
(Partridge pea, Senna, Sleeping plant)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This colorful annual legume bears attractive yellow flowers that have reddish-purple spots at their base. The compound, feathery leaves look like those of sensitive plant. Fruit is contained in a pea pod, which adds additional garden interest and may attract birds.

Chamaemelum nobile and cvs. Chamaemelum nobile and cvs.
(Chamomile)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A hardy perennial, chamomile has aromatic, threadlike leaves that fill the air with a pleasing apple-pineapple scent. White, daisylike blooms appear in summer. The cultivar 'Treneague' is valued because it does not flower, making an attractive lawn. 'Flore Pleno' has double flowers showier than those of the species.

Chasmanthium latifolium Chasmanthium latifolium
(Northern sea oats, Spangle grass, Wild oats)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Northern sea oats is a loosely tufted, clump-forming grass with lance-shaped, arching mid-green foliage that turns yellow in winter. Summer brings highly decorative oat-like panicles of flat, green flowerheads that shimmer and rustle in the wind, aging to bronze by late summer.

Chelone obliqua Chelone obliqua
(Turtlehead)
(4 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Turtlehead is an excellent, sturdy, vertical perennial with rounded stems, medium texture and deep-green, boldly veined leaves on short stalks. Weather-resistant flowers are dark pink or purple, borne in short, dense, terminal spikes. The flowers are tubular 2-lipped blooms, with a sparse yellow beard inside each lower lip.

no image available Choisya ternata 'Sundance'
(Mexican orange blossom)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Sundance' Mexican orange blossom is an evergreen, compact shrub with white, fragrant flowers borne in late spring, and again in late summer and autumn. Groups of three little leaflets give the young yellow-green foliage a pleasing pattern, while the waxy, glossy texture adds a luminous quality.

Chrysanthemum morifolium Chrysanthemum morifolium
(Hardy garden mum)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

There would be few cut flowers blooming in October were it not for hardy garden mums. Their clusters of flowerheads show over a long period and are available in many colors, including red, orange, yellow, white, and lavender.

Chrysogonum virginianum ‘Eco-Lacquered Spider’ Chrysogonum virginianum ‘Eco-Lacquered Spider’
(Goldenstar)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Goldenstar is a creeping groundcover with long, reddish-green leaf stalks and opposite, heart-shaped, hairy mid-green leaves. From early spring to summer, it bears solitary, star-shaped yellow flowerheads with 5 large, triangular ray florets.

Chrysogonum virginianum var. australe Chrysogonum virginianum var. australe
(Goldenstar, Green-and-gold)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

From May to October, this perennial bears bright yellow, daisylike flowers on leafy stalks. It spreads by rooting runners to form an attractive groundcover that is easily controlled. This variety differs from the species in its more prostrate form and its more rapid spread.

no image available Chrysogonum virginianum var. virginianum 'Mark Viette'
(Green-and-gold)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Mark Viette' is a clump-forming, handsome 6-inch tall plant with thick, semi-evergreen deep green leaves and perky 1-inch flowers of buttercup yellow.

Cissus discolor Cissus discolor
(Rex begonia vine)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Having the striking leaves of a Rex begonia and a vining growth habit, Cissus discolor is excellent in a container and can be trained onto a form. Its oval- to heart-shaped leaves are dark green with frosty silver patterns, while the undersides are red. The vine generally stays to 1 to 3 feet in containers. It may also be used on trellises or arbors.

Cistus albidus Cistus albidus
(Rock rose, Sun rose)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is an evergreen, bushy shrub native to southwestern Europe and North Africa. Rock roses are useful in a shrub border, on a hillside, or in containers. Cistus albidus bears vibrant lilac-pink flowers in summer. Although each flower lasts only one day, they are produced in great numbers on plants that are 3 feet tall and wide.

no image available Claytonia virginica
(Spring beauty)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This low-growing, spring-blooming succulent touts 5-petaled, pale-pink striped flowers with strap-like foliage that continues to grow after bloom but disappears in late spring when the plants go into dormancy. It can literally carpet the ground in early spring, giving the impression of a light dusting of snow. Its flowers open when the sun is out and close when it is cloudy.

Clematis 'Ernest Markham' Clematis 'Ernest Markham'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Ernest Markham' is a vigorous, late-flowering climber with abundant small flowers in summer. Blossoms are rich magenta, 4 inches across, with blunt-tipped sepals and light chocolate anthers.

Clematis ‘Nelly Moser’ Clematis ‘Nelly Moser’
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Nellie Moser' is easy to grow, producing large, flat flowers 6 to 8 inches in diameter with distinctive, gleaming lilac bars on each petal. This clematis blooms from May to late June, with a second, less profuse bloom in mid-August. Planted in a shady spot, the cheery pink-and-mauve-striped blossoms last for weeks instead of days.

Clematis alpina Clematis alpina
(Alpine clematis)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Alpine clematis is one of the earliest clematises to bloom, in early May. It bears relatively small but delightful nodding, bell-shaped flowers, 1 to 1.5 inches in diameter, in a great variety of colors.

Clematis crispa Clematis crispa
(Marsh clematis, Blue jasmine, Curly clematis)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A deciduous climber native to the southeastern United States, Clematis crispa bears lavender-blue, bell-shaped flowers with curly edges in summer. Its blooms are not profuse, but their elegant shape makes this plant a good choice for trellises, growing through shrubs, or planting in damp areas. The flowers are slightly fragrant and are followed by attractive seedheads. It also makes an unusual cut flower.

Clematis integrifolia Clematis integrifolia
(Solitary clematis)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Clematis integrifolia is a herbaceous, woody-based, upright, non-climbing perennial with a dense and somewhat sprawling habit. It bears solitary, nodding, bell-shaped flowers with slightly twisted violet to blue sepals and creamy white anthers from May to July. Sporadic blooming sometimes occurs throughout the summer. Blossoms mature to attractive, feathery, silver-green, or silvery brown seed heads.

Clematis integrifolia Mongolian Bells™ Clematis integrifolia Mongolian Bells™
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Clematis integrifolia is no longer only blue. This selection produces progeny with pink, white, and lavender blooms from midspring until late summer. The flowers are followed by attractive seed heads in fall. It has a compact, herbaceous form and grows to just 10 to 14 inches tall.

Clematis macropetala Clematis macropetala
(Downy clematis)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Downy clematis is a hardy, deciduous early bloomer that can flourish in Zone 4. The species will climb to 10 feet with a little support, and it has bell-shaped, purple-blue, almost columbine-like flowers about 1 to 2 inches, sometimes up to 4 inches in diameter, that mature to fluffy, pinkish seed heads. Blooms appear in spring and early summer, sometimes followed by a second flush in late summer to early autumn

Clematis tangutica 'Golden Tiara' Clematis tangutica 'Golden Tiara'
(Russian virgin's bower)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Golden Tiara' is a vigorous, late-flowering climbing vine to 15 or 20 feet tall with intense golden-yellow, bell-shaped flowers that eventually fully open to reveal crimson filaments. It blooms profusely from midsummer to late fall. The seedheads are fluffy and attractive in their own right. Native to western China.

Clematis terniflora Clematis terniflora
(Sweet autumn clematis)
(7 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This deciduous, late-flowering twining vine with deep green leaves and profuse, fragrant white flowers is easy to grow and will thrive and bloom in shade. Star-shaped blossoms are 1 inch across, appearing from late August to October and maturing to attractive, plume-like seed heads. The shiny green foliage is leathery.

Clematis texensis 'Duchess of Albany' Clematis texensis 'Duchess of Albany'
(Scarlet clematis, Leather flower, Texas clematis)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This vigorous climber can easily cover a support of 8 to 10 feet tall once established. Finely textured, dense light-green foliage makes an excellent foil for dainty, pink and carmine teardrop-shaped flowers 2 inches across. Blooms appear in early August and continue well into autumn.

no image available Clematis viticella 'Alba Luxurians'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Alba Luxurians' is a very tough, late-flowering climber with small flowers that open from midsummer to late autumn. White blossoms are sometimes faintly tinged with mauve when young, and are open, bell-shaped, single, and 2 to 3 inches across. Foliage is slightly gray-green.

Clerodendrum trichotomum Clerodendrum trichotomum
(Harlequin glorybower)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This large shrub offers a late-summer display of jasmine-like white flowers encased in red tepals and scent. Bright blue berries in autumn are accented by conspicuous bright, pinkish-red calyxes.

Clethra acuminata Clethra acuminata
(Cinnamon clethra)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Larger in all respects than common sweet pepperbush (Clethra alnifolia), this sizable shrub or small understory tree grows 8 to 12 feet tall and wide. In early summer, long, slender racemes composed of small ivory flowers appear, then give way to peppercorn-shaped seed capsules that swoop out from the branch tips in fall. About the same time, lance-shaped leaves become a glowing golden yellow before falling to reveal the reddish brown bark. The bark peels in small, irregular patches in the fashion of sycamores (Plantus occidentalis) to expose a dusty gray under-bark. Cinnamon clethra is a good choice for a woodland garden, where the tiered branches and elegant stems look captivating against new fallen snow.

Clethra alnifolia Clethra alnifolia
(Sweet pepperbush)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This upright, suckering shrub has fragrant, white or pink terminal flower spikes in late summer. The blooms look like bottle brushes and attract butterflies and bees. Leaves turn a pleasant yellow in autumn.

Clethra alnifolia 'Hummingbird' Clethra alnifolia 'Hummingbird'
(Sweet pepperbush)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This upright, suckering shrub bears creamy white, deliciously spicy clove-scented flowers in dense, upright spikes that last four to six weeks in July and August. It is more compact than the species. Flowers mature to spikes of dark brown capsules that provide winter interest. Its oval, glossy dark green leaves turn a pleasant yellow in autumn.

no image available Clethra alnifolia 'Pink Spire'
(Summersweet, Sweet Pepperbush)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Very fragrant, light pink bottlebrush flowers grace this native shrub in late summer and early fall, attracting butterflies and other insects and perfuming the garden for weeks. Plant it in beds or borders, in a woodland or shade garden, or at waterside. It also has nice fall color.

Clethra alnifolia 'Ruby Spice' Clethra alnifolia 'Ruby Spice'
(summersweet, sweet pepperbush)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This summersweet is a sport of C. alnifolia 'Pink Spires'. Its fragrant, bottlebrush flowers are a darker pink; they attract butterflies, bees, and other insects in late summer and early fall. 'Ruby Spice' grows to about 4 to 6 feet tall and almost as wide, making this shrub suitable for a bed or border, a woodland or shade garden, or a waterside planting. Its yellow fall color extends the season of interest.

Clethra alnifolia 'Sixteen Candles' Clethra alnifolia 'Sixteen Candles'
(Sweet pepperbush)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

‘Sixteen Candles’ summersweet is a newer cultivar of a popular native shrub. This compact selection reaches 3 to 5 feet tall. In summer, ‘Sixteen Candles’ is topped with aromatic, erect, butterfly-enticing white blooms for 4 to 6 weeks. In fall, the leaves turn an attractive yellow.

Colchicum 'Waterlily' Colchicum 'Waterlily'
(Autumn crocus, Meadow saffron)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Semi-erect, narrowly ovate leaves 7-10 inches long appear in spring and disappear by summer, followed by large, fully double, rosy lilac flowers resembling the blooms of a waterlily.

Colchicum autumnale Colchicum autumnale
(Meadow saffron)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Meadow saffron is a cormous perennial with erect, lance-shaped leaves 5 to 14 inches long. It bears 1 to 6 goblet-shaped, lavender-pink flowers in fall.

Colchicum speciosum Colchicum speciosum
(Autumn crocus, Meadow saffron)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This vigorous cormous perennial has semi-erect, lance-shaped leaves 7 to 10 inches long that emerge in spring, then go dormant in late May. In September, it bears 1 to 3 leafless, goblet-shaped, intense pink flowers with yellow anthers and often white throats.

Colocasia affinis var. jenningsii Colocasia affinis var. jenningsii
(Dwarf elephant's ear)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This little elephant ear has velvety dark leaves with prominent green veins and a large silvery central blotch. It reaches about 2 feet high.

Colocasia esculenta Colocasia esculenta
(Taro)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A large, showy, marginal aquatic plant with heart-shaped, dark green leaves, taro can reach 5 feet tall and is often grown as a summer annual. Use it in a container or near water.

Colocasia esculenta 'Black Magic' Colocasia esculenta 'Black Magic'
(Elephant ear, Cocoyam, Dasheen, Taro)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Rising to about 36 inches, the elephant ear's deep-purple stalks suspend luxurious leaves of the same color. When the leaves’ undersides are dusted with chalky-looking bloom, they have an intriguing, almost gray look. This plant does well in a bog or even in the margins of a water garden, as well as in average garden soil.

Colocasia esculenta 'Coffee Cups' Colocasia esculenta 'Coffee Cups'
('Coffee Cups' elephant's ear)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Coffee Cups' is an unusual and relatively recent introduction. It has nearly black stems and  cup-shaped leaves. 'Coffee Cups' is a vigorous grower, and, with a height of 6 feet, it's a good choice for the back part of a border. -Andy Cabe, Regional Picks: Southeast, Fine Gardening issue #120

Colocasia esculenta 'Illustris' Colocasia esculenta 'Illustris'
('Illustris' elephant's ear, Imperial taro)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The heart-shaped leaves of 'Illustris' are huge, and their dark highlights are stunning. This elephant ear is a lover of moist shade, but does best with a little dappled sunlight. It will tolerate boggy conditions. -Julia Jones, Fine Gardening issue #120

Consolida ajacis Consolida ajacis
(Larkspur)
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Feathery, almost fern-like leaves are mid- to dark green. In summer, larkspur bears delphinium-like open to densely packed spikes to 24 inches tall of pink, white, or violet-blue double flowers.

Convallaria majalis Convallaria majalis
(Lily of the Valley, May bells)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Lily of the valley's bell-shaped, sweetly scented flowers bloom in early spring. It likes partial to full shade and is perfect for a woodland garden. It may not be the best choice for your beds and borders because it tends to spread, but it is a perfect ground cover if you have a large shady spot under some trees.

no image available Convolvulus mauritanicus
(Ground morning glory)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Ground morning glory is a trailing low grower with a profusion of funnel-shaped lavender flowers from summer to early autumn.

Cordia parvifolia Cordia parvifolia
(Littleleaf cordia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Though its leaves are small, this semi-deciduous shrub stands out in the landscape. Littleleaf cordia has a prolifically branching, slightly open form that looks good year-round. Its roughly textured, dark gray-green foliage contrasts nicely with its coppery brown young stems. From late spring into fall, branch tips bear clusters of pristine, white, funnel-shaped flowers to provide a visually cooling effect during the peak of summer heat. It grows to 6 to 8 feet tall and wide.

Cordyline hybrida var. JURred 'Festival™ Burgundy' Cordyline hybrida var. JURred 'Festival™ Burgundy'
(Festival™ Burgundy corydaline)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This basal branching cordyline combines the rugged easy-care attributes of its cordyline cousins with an unusual mix of shiny dark color, compact bushy form, short stems and cascading grass-like leaves.

Cordyline australis 'Purple Tower' Cordyline australis 'Purple Tower'
(Giant dracaena, New Zealand cabbage palm)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Purple Tower' is a cultivar of the New Zealand native cabbage tree, frequently grown in greenhouses, as houseplants, or as large accent plants outdoors. It is hardy to Zone 10. The narrow, plum-purple leaves reach 3 feet long. The fragrant white flowers are small, but they are borne in large panicles in spring and early summer on mature plants. Plants grown in containers only rarely flower, however. Young plants are often sold as houseplants. Mature specimens have thick trunks with foliage at the top, resembling a palm tree. They are striking container specimens and can be plugged into a summer border. The species has naturalized in portions of California and the southern U.S.

Coreopsis auriculata Coreopsis auriculata
(Eared coreopsis)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Large golden-yellow blossoms are borne in late spring and midsummer on top of stems reaching almost 3 feet high. Native to the southeastern U.S.

no image available Coreopsis grandiflora
(Large-flowered tickseed)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

As the name implies, this species bears large, daisy-like blossoms (2.5 inches across) of golden yellow rays and darker yellow centers. It blooms from late spring to late summer and is native to the central and southeastern U.S.

Coreopsis grandiflora 'Baby Sun' Coreopsis grandiflora 'Baby Sun'
(Tickseed)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A multitude of 2-inch, golden-yellow daisy flowers sits atop thready foliage from late spring to late summer if deadheaded promptly. This clump-forming perennial is native to the central and southeastern U.S. It is sometimes grown as an annual. It makes a beautiful cut flower, and its casual habit makes it valuable in cottage gardens, borders, containers, and meadows.

Coreopsis grandiflora 'Sunray' Coreopsis grandiflora 'Sunray'
(coreopsis, 'Sunray' tickseed)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Sunray' coreopsis has double to semi-double yellow flowers that begin blooming in late spring and continue throughout the summer. The species is native to the central and southeastern U.S. Flowers are good for cutting. Use in beds and borders or in containers.

Coreopsis hybrid 'Route 66' Coreopsis hybrid 'Route 66'
(Threadleaf coreopsis)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Route 66' features big, bold, bicolor blooms. A rich ring of burgundy surrounding the flower center bleeds out to the very tips of the yellow petals. Narrow, deep-green foliage forms vigorous, uniform clumps.

Coreopsis rosea Coreopsis rosea
(Tickseed)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant bears a profusion of lavender-pink flowers with yellow centers from mid-summer to early autumn. This perennial has finely textured leaves that give it an airy appearance.

Coreopsis rosea 'Sweet Dreams' Coreopsis rosea 'Sweet Dreams'
(Tickseed)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The bicolored, white-tipped and raspberry-centered blooms are large (1 to 1.5 inches across) and long lasting. Flowers cover the mound of grassy foliage for weeks in summer and early fall. This hybrid does not produce seed.

Coreopsis verticillata ‘Moonbeam’ Coreopsis verticillata ‘Moonbeam’
(Thread-leaved tickseed)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Moonbeam' produces star-like blossoms of pale yellow from late spring into autumn. This cultivar is widely used because the refreshing tint of yellow compliments so many colors. The finely textured foliage adds interest all season long.

Corepsis verticillata ‘Zagreb' Corepsis verticillata ‘Zagreb'
(Thread-leaved tickseed)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Zagreb' produces star-like blossoms in egg-yolk yellow in early summer on plants 12 inches tall and wide. The sturdy, upright stems and finely textured foliage add delicate texture to the garden.

Cornus alba 'Elegantissima' Cornus alba 'Elegantissima'
(Redtwig dogwood, Cream-edge tatarian dogwood)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This vigorous deciduous shrub provides a long season of interest in the garden with its variegated leaves, attractive berries, pretty fall color, and red winter stems.

no image available Cornus alba
(Redtwig dogwood)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

These showy shrubs have two distinct phases of garden interest. In winter, they display boldly colorful bark—red, yellow, or orange—on twiggy stems to make a striking scene. In spring, the stems lose their vivid color and produce bright green, gold, or variegated foliage that accents the garden through the fall. Twig and leaf color vary according to the cultivar.

no image available Cornus canadensis
(Creeping dogwood, Bunchberry, Dwarf cornel)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A spreading subshrub, Cornus canadensis has whorls of leathery mid-green leaves that turn purple in the winter. Green and white, sometimes pink-flushed flowers emerge in late spring and early summer, followed by clusters of scarlet berries.

Cornus florida Cornus florida
(Flowering dogwood)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native flowering tree is best known for its early spring blossoms, which are actually yellowish green flowers clustered in the center of four showy, white to pink bracts 1-1/2 to 2 inches long. Clusters of four bright red fruits mature in early fall, often persisting into the beginning of winter. 

Cornus kousa Cornus kousa
(Kousa dogwood)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A native of Korea and Japan, Kousa dogwood makes an excellent landscape tree and offers a long season of interest. Beginning in early summer, white bracts in sets of four (sometimes with pink tinges) surround tiny green flowers. These are followed by reddish fruit that resembles raspberries and attracts birds. Autumn color is a deep reddish purple. This species is resistant to dogwood anthracnose and has good cold hardiness. Grow as a specimen plant or in a woodland setting. It can be grown as a tree or large, multi-stemmed shrub.

Cornus racemosa 'Emerald' Cornus racemosa 'Emerald'
(Snow Lace® gray dogwood)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native shrub dogwood is more compact than the species with semiglossy, emerald green foliage and showy, white fruit. Purple fall leaf color and rosy pink pedicels make this gray dogwood a fine choice for the woodland edge. Its silvery gray bark in winter adds interest into another season. White flowers in the spring add to the list of what it offers. Plant this dogwood in the landscape where it will be seen in the fall and winter. It rarely suckers.

Cornus stolonifera Cornus stolonifera
(Red osier dogwood)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Red osier dogwood is a deciduous shrub with a rounded, spreading form. Opposite leaves with rounded bases are ovate to lance-shaped and dark green, turning a dull red, purple-red, or orange in autumn. Clusters of white flowers appear in late May to early June, followed by white to pale blue fruit. Green stems turn reddish or purple-red from late summer into early fall, becoming brighter in winter.

Correa 'Dusky Bells' Correa 'Dusky Bells'
(Australian fuchsia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This spreading ground cover flowers from fall into spring. Its tubular, dusky pink flowers attract hummingbirds, and its deep green leaves release a citrus scent when crushed. Tolerant of dry conditions, frost-hardy 'Dusky Bells' correa should be tip-pruned regularly to promote new growth and improve flowering. Healthy specimens can live up to 50 years or more.

no image available Cortaderia selloana
(Pampas grass)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This stunning grass has 1- to 3-foot-long, densely tufted plumes atop tall, upright stalks and arching mid-green leaves. Plumes come in white, cream, or beige-pink and appear in late summer.

Cortaderia selloana 'Gold Band' Cortaderia selloana 'Gold Band'
('Gold Band' pampas grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clumping, drought-tolerant grass is one of the best pampas grasses you could grow. It has the showy, late-summer plumes common to this group, but they grow straight up, not willy-nilly like many other varieties; they eventually stand 4 to 6 feet above the foliage. Even better news is that this cultivar does not set seed, so it is noninvasive. The foliage features distinct golden edges, which, for a grass, usually menas that it loves shade or moisture. But 'Gold Band' tolerates heat and drought, making it great for large containers, and it can handle coastal conditions, too.

Cortaderia selloana ‘Pumila” Cortaderia selloana ‘Pumila”
(Pampas grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This dwarf cultivar has mid-green leaves and densely tufted plumes atop tall, upright stalks and arching mid-green leaves. Masses of silvery yellow plumes appear in late summer.

Corydalis ‘Blackberry Wine’ Corydalis ‘Blackberry Wine’
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Stunning, fragrant pinkish-purple flowers bloom in spring and then sporadically through fall. The ferny foliage can reach as high as 3 feet and looks great around hostas and other shade garden plants. 

Corydalis aurea Corydalis aurea
(Scrambled eggs)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In spring, this biennial produces small yellow flowers, which are carried tightly over finely divided, sea green leaves. It self-sows freely.

Corydalis cheilanthifolia Corydalis cheilanthifolia
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant's tapering, finely dissected leaves make it look like a fern relative. The bronzy tints of the emerging foliage add to this plant's beauty. It bears buttery yellow blossoms from spring to summer.

Corydalis curviflora var. rosthornii 'Heronswood Form' Corydalis curviflora var. rosthornii 'Heronswood Form'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This variety has fragrant, deep blue, cornucopia-shaped flowers carried tightly on red stems above 6-inch tall, blue-green foliage. It is considered one of the best blue forms for color and performance.

Corydalis elata Corydalis elata
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This fragrant, blue-flowered species is more vigorous and heat tolerant than the blue cultivars. It blooms from late spring to early summer, and its foliage persists throughout the season with adequate moisture.

no image available Corydalis flexuosa
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

From late spring to summer, this species produces clusters of brilliant blue flowers over ferny foliage. It is the parent of many of the rapidly expanding selection of choice blue cultivars.

Corydalis flexuosa 'Blue Panda' Corydalis flexuosa 'Blue Panda'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The first of the coveted blue corydalises to be introduced, it produces fragrant clusters of long-spurred, azure flowers on a compact plant. 

Corydalis flexuosa 'China Blue' Corydalis flexuosa 'China Blue'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is one of the coveted blue corydalises. It produces whorled clusters of sky-blue flowers on 18-inch tall plants. 

Corydalis flexuosa 'Purple Leaf' Corydalis flexuosa 'Purple Leaf'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This choice corydalis produces fragrant clusters of periwinkle-blue flowers and ferny foliage infused with purple hues. It is similar to 'Blue Panda,' yet is slower to spread and blooms more reliably during the summer.

Corydalis linstowiana Corydalis linstowiana
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species produces copious purplish-blue flowers in spring and fall. It has light green ferny leaves with a mid-rib of silver.

Corydalis lutea Corydalis lutea
(Yellow corydalis)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species has bluntly spurred golden yellow flowers from late spring to early fall. Its pale green, glaucous leaves form compact, ferny mounds.

Corydalis ochroleuca Corydalis ochroleuca
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

From late spring and throughout the summer, creamy flowers cover a delicate mound of filigreed gray-green foliage.

Corydalis scouleri Corydalis scouleri
(Scouler's fumeroot)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species has tiers of lacy foliage that form broad clumps, 3 feet high by 3 feet wide. Its hot pink flowers bloom from May to July.

Corydalis solida Corydalis solida
(Fumewort)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species produces mauve-pink, purple, or white flower spikes in spring over deeply divided gray-green leaves that are barely 10 inches tall. 

Cosmos atrosanguineus Cosmos atrosanguineus
(Chocolate cosmos, Black cosmos)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A chocolate scented flower! Dark red-brown, sometimes almost black, velvety flowers on long, slender, reddish brown stems bloom from early summer to autumn. Chocolate cosmos is a tuberous-rooted, tender perennial native to Mexico that can be overwintered indoors where not hardy. Grow in a border or in containers where the flowers can be appreciated up close. They also make good cut flowers.

Cosmos bipinnatus 'Sea Shells' Cosmos bipinnatus 'Sea Shells'
(1 user review)

This unique annual produces quilled blossoms of hollow, tube-shaped petals that radiate from the center in shades of white, pink, or carmine red. The flowers, which bloom all summer long, sometimes have bicolored interior and exterior tubes. 

Cosmos bipinnatus 'Sensation Series' Cosmos bipinnatus 'Sensation Series'
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This series of annuals produces extra large, cup-shaped blossoms to 3-1/2 inches across in shades of white or pink all summer long. 

Cosmos bipinnatus 'Sonata Dwarf Mix' Cosmos bipinnatus 'Sonata Dwarf Mix'
(1 user review)

This series produces compact plants 1 foot tall and about as wide with large blossoms in pure white and many shades of pink. These season-long performers make fine edging plants.

Cosmos bipinnatus cvs. Cosmos bipinnatus cvs.
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Cosmos are branching annuals with ferny foliage and pink, crimson, or white flowers that work well in the back of a border. Although introduced in 1799, cosmos did not beome popular for the garden or as the subject of breeding efforts until the early 1900s. The rest is now history. The variety 'Sensation' won the All-American Selection Award of Merit in 1936 for its clear colors of pink and white, on early-blooming, 3- to 4-foot-tall plants. 'Purity' is the glistening white form of cosmos in the 'Sensation' series. 'Sea Shells' has quilled florets. The Sonata Series cultivars are dwarf plants only growing to about a foot or two tall.

Cosmos sulfureus 'Cosmic Red' Cosmos sulfureus 'Cosmic Red'
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The intense scarlet red blooms and yellow centers of this bedding plant will stop you in your tracks. ‘Cosmic Red’ blooms all summer and looks great at the front of the border and in containers. As with other cosmos cultivars, grow this plant in full sun and moist, well-drained soil. The already hypnotic color will intensify as light levels increase.

Cotinus 'Grace' Cotinus 'Grace'
('Grace' smoke tree)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cross of the European smoke bush (C. coggygria) and the American smoke tree (C. obovatus) is a gem in the garden thanks to its multiseason interest. Its iridescent spring foliage is green overlaid with red; then its large pink clouds of blooms in summer are followed by brilliant autumn foliage that ranges from red to orange. 'Grace' combines well with just about anything; asters, ornamental grasses, and Japanese maples are good places to start.

Cotinus coggygria Cotinus coggygria
(Smoke tree, Venetian sumac)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This bushy shrub or small tree has generated many notable cultivars, all of which add great textural qualities to the landscape. It has 6-inch-long frothy plumes that appear after the flowers and give a long-lasting, smoky haze to branch tips. Its green leaves are smooth and rounded and produce brilliant fall color.

Cotinus coggygria 'Ancot' Cotinus coggygria 'Ancot'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This specimen is grown for its stunning golden leaves, which turn to brilliant shades of orange and red in autumn. It may or may not produce the smoke-like plumes typical of the genus. 

Cotinus coggygria ‘Royal Purple’ Cotinus coggygria ‘Royal Purple’
(Smoke tree, Venetian sumac)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This shrub or small tree has stunning dark red-purple foliage that turns scarlet in autumn. It has plume-like seed clusters, which appear after the flowers and give a long-lasting, smoky haze to branch tips.

Cotinus coggygria ‘Velvet Cloak' Cotinus coggygria ‘Velvet Cloak'
(Smoke tree, Venetian sumac)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This shrub or small tree has stunning deep purple foliage that turns orange-red in autumn. It has plume-like seed heads, which appear after the flowers and give a long-lasting, smoky haze to branch tips.

Cotoneaster 'Tom Thumb’ Cotoneaster 'Tom Thumb’
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This compact, low-growing, and self-rooting deciduous shrub is useful as an underplanting or ground cover. Its shiny dense foliage turns a brilliant red in the fall and requires little or no pruning.

Crambe cordifolia Crambe cordifolia
(Colewort)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species is notable in stature, forming a giant mound and producing a profusion of airy white flowers on tall stems in late spring to midsummer and then dying down in midsummer to late summer. Colewort can reach 8 feet high and about half as wide. Grow in a large border or open woodland.

Crinum 'Sangria' Crinum 'Sangria'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This purple-leaved hybrid has Crinum bulbispermum in its blood, so it is more cold hardy than many other purple-leaved crinums. In spring, 'Sangria' sends up 2-foot-long leaves (it will stay evergreen in frost-free climates). 'Sangria' crinum serves as a superb substitute for phormiums, though it is somewhat less upright. It is grown for its foliage alone or for its pink flowers, which appear in the spring. -Andy Cabe, Regional Picks: Southeast, Fine Gardening issue #120

Crocosmia 'Lucifer' Crocosmia 'Lucifer'
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Abundant eye-catching, brillliantly red, tubular flowers appear in midsummer atop bold, slightly arching, sparsely branched 3-foot-tall stems. Crocosmia's mid-green leaves are pleated and swordlike.

Crocosmia × crocosmiiflora Crocosmia × crocosmiiflora
(Montbretia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Montbretia looks like a small gladiolus until it blooms in late summer, when abundant sprays of orange, gold, or yellow star-shaped flowers are held by gracefully thin, arching, zigzag stems rising from a cluster of pale green, sword-shaped leaves.

Crocus sativus Crocus sativus
(Saffron crocus)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The saffron crocus blooms in the autumn, producing 1 to 5 rich lilac flowers with dark purple veins, held wide open above inconspicuous foliage.

Crocus speciosus Crocus speciosus
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This autumn-flowering cormous perennial bears long-tubed flowers in shades of violet-blue with deeper blue veins and divided, bright orange styles.

Crocus vernus Crocus vernus
(Dutch crocus)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Dutch crocus is one of the hardiest, if not the hardiest, crocus species readily available to home gardeners. A true harbinger of spring, it can be planted in borders, rock gardens, and even lawns. After flowering, the foliage must be left intact until it withers, which may cause lawn-mower anxiety in some gardeners. Often sold as "mixed crocus," cultivars of this species are typically white, lilac, or purple and white striped.

Cuphea llavea Flamenco Samba™ Cuphea llavea Flamenco Samba™
(Bat-faced cuphea)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This bold-colored cuphea is a compact, mounding subshrub covered with dark-centered, cherry red blooms centered with a deep purple throat and slightly ruffled petal edges. Flowers are larger than those of the species. This sun-loving plant can reach up to 3 feet in height and width.

Cuphea llavea Totally Tempted™ Cuphea llavea Totally Tempted™
(Totally Tempted™ cuphea)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Totally Tempted™ cuphea has nonstop, bright red summer flowers that don't need deadheading. It doesn't mind summer heat and has a more compact habit than most cultivars in this species, growing to just a foot tall and a little wider.

no image available Cuphea micropetala
(Cigar plant)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tireless bloomer is best known for its small, tubular flowers, each colored in vivid orange hues and tipped with white, like the ash on a glowing cigar. Each plant creates a mass of slender branches with lance-shaped, mid-green leaves. At the tip of the branches are fireworks bursts of unusual cigarlike flowers, each 1-1/4 inches long and softly hairy. Though the flowers look orangey, they are actually colored red and shaded with green-yellow.

Cyclamen hederifolium Cyclamen hederifolium
(Baby cyclamen)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A fine plant for fall, this cyclamen's frequently scented, mottled flowers emerge directly from the soil, followed by a carpet of patterned, mid- to dark green leaves attractively variegated with patterns in white or silver. It often blooms for up to two months. Each small pink or white flower has swept-back petals resembling a dove in flight, marked with maroon at the mouth. It makes a good foliage display all winter after the flowers have faded.

Cynara cardunculus Cynara cardunculus
(Cardoon)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cardoon is an architectural splendor with bold texture, thanks to its large, prickly, almost dagger-shaped gray-green arching leaves and a statuesque, vase-shaped frame. It is topped with round, purple, thistlelike flowers in midsummer. Cardoon can reach up to 5 feet tall and 4 feet wide.

no image available Cyrtomium falcatum
(Japanese holly fern)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Spreading, glossy, dark green fronds reach a length of 8 to 24 inches. This fern has holly-like pinnae and sori scattered over the underside of the pinnae.

Cyrtomium fortunei Cyrtomium fortunei
(Japanese holly fern)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Usually found in moist, rocky areas or woodland in central and eastern Asia, this evergreen fern is deciduous in colder climates. Fronds may be cut to the ground in spring if damaged by dry winter winds. The distinctive fronds make great accents among groundcovers, or in drifts with perennials, shrubs, and trees.

Cytisus scoparius Cytisus scoparius
(Scotch broom)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Scotch broom is an upright, deciduous shrub with slender, arching shoots. In late spring, it produces abundant yellow flowers in axillary clusters.

Dahlia 'Bashful' Dahlia 'Bashful'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Bashful' is a reliable and prolific bloomer. The blooms (purplish petals surrounding a golden center) have a velvety feel that draws bees and butterflies. As dahlias go, 'Bashful' is not a tall plant, so it's best to place it near the front of a bed. -Alastair Gunn, Dahlias that deliver, Fine Gardening issue #121

Dahlia 'Bed Head' Dahlia 'Bed Head'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Bed Head'  is a tall plant with 4-inch-wide salmon-colored blooms with an unusually tangled appearance. It flowers less abundantly than many other dahlias, but is striking nonetheless. 'Bed Head' is a lush grower that benefits from strong staking. Plant it at the back of the border, and show it off as a cut flower in a vase. -Alastair Gunn, Dahlias that deliver, Fine Gardening issue #121

Dahlia 'Bishop of Llandaff' Dahlia 'Bishop of Llandaff'
(Dahlia)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

With its deep purple-black leaves and brilliant summer blooms, 'Bishop of Llandaff' is a fine addition to the sunny bed or border. The 4- to 6-inch-round red-petaled flowers have deep purple and yellow centers, which are set off nicely by the plant's dark foliage. Use this long-stemmed cultivar in cut-flower arrangements. -Gerald Gibbens, Regional Picks: Northwest, Fine Gardening issue#120

Dahlia 'Bodacious' Dahlia 'Bodacious'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Bodacious' lives up to its name, with brilliant color and blooms that are supersized in both height and diameter. Heavy-headed 'Bodacious' requires beefy stakes. The rich color and ruffled effect of the loosely arranged petals make it stunning as a cut flower. -Alastair Gunn, Dahlias that deliver, Fine Gardening issue #121

Dahlia 'David Howard' Dahlia 'David Howard'
(Dahlia)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'David Howard' is large and vigorous dahlia with fine color. Apricot blooms contrasts nicely with the dark foliage and with dark-colored companion plants. It pairs well both with hot colors such as red and orange and cool blues and purples. A tall grower, it requires staking and looks best in the middle or back of a border. Perhaps best of all, it blooms continually without deadheading. -Alastair Gunn, Dahlias that deliver, Fine Gardening issue #121

no image available Dahlia 'Figaro'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Figaro' is a dwarf "landscape" dahlia with semi-double flowers in shades of red, pink, orange, yellow, and white. It works well as bedding and in containers, and blooms from planting time until frost.  

Dahlia 'Gallery Art Deco' Dahlia 'Gallery Art Deco'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Gallery Art Deco' is a little taller than the other plants in the Gallery series. It grows to a height of 2 feet and bears 4- to 5-inch-wide peach/apricot blooms. Petals are outlined in burgundy. 'Gallery Art Deco' provides lots of large flowers for a long time, and it is a perfect choice for containers. -Alastair Gunn, Dahlias that deliver, Fine Gardening issue #121

Dahlia 'Hissy Fitz' Dahlia 'Hissy Fitz'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Hissy Fitz' isn't a fussy plant, in spite of its amusing name. Its prolific and strong clear yellow blossoms  look like pompoms, thanks to the small incisions at the tip of each petal. Of medium height, 'Hissy Fitz' is a sturdy grower and not hard to stake. It's a fine addition to the sunny border. -Alastair Gunn, Dahlias that deliver, Fine Gardening issue #121

Dahlia 'Honka' Dahlia 'Honka'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Honka' has a simple, cheerful charm. Its eight-petaled, star-shaped flowers are lightly scented (not many dahlias are fragrant). 'Honka' brings a subtle presence to the late-summer border. Sturdy stems support the flowers above the plant and look good in the front of the border alongside taller perennials with a backdrop of dark foliage. No staking is required. -Alastair Gunn, Dahlias that deliver, Fine Gardening issue #121

Dahlia 'Jersey Beauty' Dahlia 'Jersey Beauty'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The 20th century's most celebrated dahlia is 'Jersey Beauty'. This towering, 4- to 6-foot-tall 1920s classic will produce so many lively, true-pink, classic dahlia flowers that you can cut all you want and still have a great garden display. This selection is exceptionally vigorous and beautiful.

Dahlia 'Kaiser Wilhelm' Dahlia 'Kaiser Wilhelm'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Of the maybe 10,000 named dahlias introduced in the 1800s—when dahlias ranked right up there with roses in popularity—only three survive. One of them is 'Kaiser Wilhelm', introduced in 1892. Its 3-inch flowers have neatly curled petals of soft custard-yellow brushed with burgundy, and a green button eye just like that of an old rose. The plant can grow to 5 feet.

Dahlia 'Kidd's Climax' Dahlia 'Kidd's Climax'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The pink-and-cream dinner-plate-sized 'Kidd's Climax' of 1947 has 10-inch flowers atop 4-foot-tall plants.

Dahlia 'Myrtle's Folly' Dahlia 'Myrtle's Folly'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

If you like the combination of peach and pink, you'll love 'Myrtle's Folly', whose narrow, twisted petals of deep pink and light orange  mature to reveal a yellow center. Perhaps too ungainly to use as a border plant, 'Myrtle's Folly' will provide a reliable supply of flowers that look perfect in a vase. -Alastair Gunn, Dahlias that deliver, Fine Gardening issue #121

Dahlia 'Mystic Illusion' Dahlia 'Mystic Illusion'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This new dahlia has gorgeous, bright yellow blooms that pop against its rich, dark purple (nearly black) foliage. 'Mystic Illusion' is well branched and makes a strong statement in beds, borders, and containers.

Dahlia 'Pooh' Dahlia 'Pooh'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A charming choice, 'Pooh' has orange-red petals with gold and lemon-colored petal-like sepals. Plant this dahlia toward the back in a border, where its small flowers on tall stalks will be sure to stand out. -Alastair Gunn, Dahlias that deliver, Fine Gardening issue #121

Dahlia 'Zorro' Dahlia 'Zorro'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

For a change of pace, 'Zorro' looks fantastic floating stemless in a bowl of water. The ruffled petals accentuate the dark red hue. Staking is a must to prevent the stems from flopping beneath the weight of its huge and heavy blooms. Pinch back the young shoots to promote branching and sturdier stalks. 'Zorro' consistently produces quality tubers for division and, as such, is the perfect cultivar to start (or sustain) a dahlia collection. -Alastair Gunn, Dahlias that deliver, Fine Gardening issue #121

Daphne × burkwoodii 'Briggs Moonlight' Daphne × burkwoodii 'Briggs Moonlight'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This stunning specimen has luminous, creamy-ivory leaves and narrow green margins. The pale pink flowers are secondary to the glamorous foliage, which can light up a shady border and create definitive contrast.

Daphne × burkwoodii 'Carol Mackie' Daphne × burkwoodii 'Carol Mackie'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This celebrated hybrid is notable for its green leaves with golden-yellow margins that fade to cream. Its deep-pink buds open to pale, pink-white blossoms in early spring and give off a sweet fragrance.

Daphne × transatlantica 'Summer Ice' Daphne × transatlantica 'Summer Ice'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This rounded shrub has leaves with white margins, and pale pink star-shaped flowers that bloom in the spring, fall, and sometimes in between.  The blossoms release an intoxicating fragrance. 

no image available Daphne odora
(Winter daphne)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This evergreen species produces rose-purple buds that open to white and are intensely and exotically fragrant. The blooms (from mid-winter to early spring) are followed by red fruit and dark-green, glossy leaves.  

Daphne odora 'Marginata' Daphne odora 'Marginata'
(Winter daphne)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This winter daphne has yellow-margined leaves and rosy-pink flower buds that open to white. Fragrant flowers bloom in winter and early spring. Reaching 4 feet tall and wide, 'Marginata' is beautiful against a wall or near a patio or deck where its fragrance can be appreciated. Or grow in a shade garden where its variegated leaves really shine. Daphne odora is evergreen and has a rounded form. It is native to China and Japan.

Darmera peltata Darmera peltata
(Indian rhubarb, Umbrella plant)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Darmera's flower stalks emerge from the ground on naked stems in spring, and are followed by cupped, rounded but indented leaves up to 24 inches across. The foliage forms a lovely, vase-like clump, 4 feet tall and 3 feet wide. The flower clusters are composed of many 5-petaled, starry, pink or white florets with conspicuous stamens. This native of the western U.S. is found growing along woodland stream banks, and helps to add a tropical look to temperate gardens. Darmera makes a distinct and long-lasting foliage statement in moist conditions, and exhibits autumn color also. 

Datura metel Datura metel
(Downy thorn apple, Devil's trumpet, Horn of plenty)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Datura metel grows 3 to 4 feet tall with large dark green leaves that have a bad smell. However, the large trumpet-shaped flowers have a sweet fragrance that spreads throughout the garden in the morning and evening. Flowers may be single or double and range from white and yellow to pink and purple.

no image available Deinanthe bifida
(Deinanthe)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This small perennial blooms in summer with cup-shaped, waxy flowers that have numerous yellow stamens. Use Deinanthe in a shade garden, a woodland, or a rock garden.

Delphinium 'Bluebird' Delphinium 'Bluebird'
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Blue Bird' is a Pacific Hybrid delphinium grown as an annual or biennial. Its mid-blue flowers have white centers. The flowers are large but short-lived and bloom on tall stems from early summer to midsummer. Grow at the back of a border or in the middle of an island bed. There is nothing quite like delphiniums in the garden.

no image available Delphinium 'Delft Blue'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Belonging to the Belladonna Group hybrids, this delphinium bears loose, branched spikes of intense blue flowers with soft white edges. It may rebloom if deadheaded. The cultivar name pays homage to the resemblance of the flower color to Delft pottery.

Delphinium elatum Delphinium elatum
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The parent of the regal hybrid Delphiniums, the species has 3- to 4-foot-tall spires of blue, violet, lavender, or white flowers. It usually requires staking.

Deschampsia cespitosa 'Northern Lights' Deschampsia cespitosa 'Northern Lights'
(Tufted hair grass, Tussock grass)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A tuft of thin grassy foliage with gray and gold variegation distinguishes this cultivar. Early summer brings 3-foot-tall, airy plumes of tiny flowers that look beautiful when backlit by the sun. As fall approaches, the foliage turns golden with pink-coral tips. This grass even grows well in shadier sites. Plant in a border, woodland garden, or shaded rock garden.

Deutzia crenata var. nakaiana 'Nikko' Deutzia crenata var. nakaiana 'Nikko'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This compact variety performs well as a groundcover and is an excellent choice for the mixed border or rock garden. 

Deutzia gracilis Deutzia gracilis
(Slender deutzia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This erect and bushy deutzia has masses of fragrant white flowers in upright clusters for weeks in spring and early summer.

Dianthus 'Neon Star' Dianthus 'Neon Star'
(Carnation, Pink)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This hybrid has a compact, mounding habit, with silvery-blue foliage and fluorescent pink toothed flowers, which continue blooming with deadheading.

Dianthus × allwoodii Dianthus × allwoodii
(Allwood hybrids)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

These modern hybrids bear salmon-pink blossoms ('Doris' has scarlet in the center) and bloom freely with moderate fragrance.

Dianthus barbatus Dianthus barbatus
(Sweet William)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

These short-lived perennials or biennials are charming plants, and are worth their weight in gold in the cottage border. After flowering, the attractive foliage holds the space well.

Dianthus barbatus 'Summer Sundae' Dianthus barbatus 'Summer Sundae'
(Sweet William)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Summer Sundae' Sweet William is a nice mix of red, pink, and white flowers held in rounded groups at the tops of stems. Plants bloom from late spring to early summer. The flowers are lightly fragrant. Use in a cottage garden or border, or in containers. It flowers the first year from seed.

Dianthus chinensis ‘Ideal Crimson' Dianthus chinensis ‘Ideal Crimson'
(China pink, India pink)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Fringed flowers in shades of bright red with white centers open without fragrance in summer. 

Dianthus deltoides Dianthus deltoides
(Maiden pink)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This mat-forming species with dark green leaves is one of the easiest to grow.  Blossoms range from white to red and are usually single and without fragrance. Use as bedding or in rock gardens.

Dianthus deltoides 'Arctic Fire' Dianthus deltoides 'Arctic Fire'
(Maiden pink)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This mat-forming species with narrow, dark green leaves is one of the easiest to grow. Blossoms with red eyes open in early summer and may rebloom if sheared back after flowering.

Dianthus gratianopolitanus 'Firewitch' Dianthus gratianopolitanus 'Firewitch'
(Cheddar pink)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Silvery-blue mats of evergreen, linear foliage. Well-known and loved for the showy, profuse, single, magenta blooms, spring-fall. 'Firewitch' exudes the spicy scent of cloves. Very hardy; good performer. Moderate to fast grower. Heat resistant and tolerant of humidity. Excellent for use in containers, as an edger, in rock gardens, scented gardens and the front of the border. If cut back, they often rebloom in early fall. Considered deer resistant once established. Attracts butterflies!  Very suitable for gardens in the South. -Santa Rosa Gardens

no image available Dianthus plumarius
(Modern border pink)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Especially fragrant and variable in color, modern border pinks form mats of grayish green leaves and fringed, saucer-shaped flowers.

Diascia barberae Diascia barberae
(Twinspur)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This softly textured tender perennial (or annual) produces delicate, loose spires in summer and fall. Diascia is at home spilling onto a walkway or filling in between more structured plants. 

Dicentra 'King of Hearts' Dicentra 'King of Hearts'
(Bleeding heart)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'King of Hearts' has bright rose-pink, heart-shaped flowers in clusters over blue-green parsley-like foliage. It offers the garden a long blooming season, plump flowers, and rich colors.

Dicentra eximia ‘Alba’ Dicentra eximia ‘Alba’
(Fringed bleeding heart, Turkey corn)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Rows of white flowers dangle above the fern-like foliage, opening in April and continuing intermittently until October.

Dicentra formosa Dicentra formosa
(Western bleeding heart)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Don't let its delicate appearance fool you: Western bleeding heart is hardy and tenacious. This elegant, herbaceous perennial spreads slowly from rhizomes to form drifts of soft blue-green, ferny foliage in shady woodland areas. Above the leaves in late spring, pink heart-shaped flowers hang gracefully from long, arched stems, attracting scores of hummingbirds but not the local deer. It is surprisingly drought tolerant during the summer months.

no image available Dicentra scandens 'Athens Yellow'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Bright yellow heart-shaped flowers bloom in April or May; bloom continues off and on throughout the season. This climbing perennial can reach 3 feet high and wide. The species is native to the Himalayas.

Dicentra spectabilis Dicentra spectabilis
(Bleeding heart, Lyre flower)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A garden favorite for many years, bleeding heart has soft green foliage and 1-inch-long rose pink and white heart-shaped flowers for several weeks in spring. Plants can form clumps 3 feet across and almost as tall. Foliage generally goes dormant in summer, so be sure to choose companion plants carefully so there isn't an empty space left in the garden. Beautiful in a border or woodland garden.

Dicentra spectabilis 'Gold Heart' Dicentra spectabilis 'Gold Heart'
(Bleeding heart, Lyre flower)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Golden yellow foliage emerges from the ground in early spring and is soon accompanied by rosy-pink broken hearts that open in succession for nearly a month as the stems elongate.

Diervilla sessilifolia 'Butterfly' Diervilla sessilifolia 'Butterfly'
(Southern bush honeysuckle)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Southern bush honeysuckle has an attractive thicket-forming habit. Glossy green leaves with tapered tips emerge tinged with bronze and mature to mid-green on reddish stems. Sulfur-yellow flowers in terminal clusters to 3 inches across appear in summer.

Digitalis grandiflora Digitalis grandiflora
(Yellow foxglove)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Originating in mountainous woodland and stony habitats from Europe to western Asia, yellow foxglove is tolerant of dry shade but flourishes with moisture. Arising in midsummer from neat clumps of fine-toothed foliage, a mass of soft yellow open bells, speckled brown inside, blooms along one side of a 3-foot-tall stem. Usually described as a perennial, it is more accurate to call it a biennial or short-lived perennial. If the flowering stalk is cut down after blooms have faded, it may rebloom in the fall. When a few flower stalks are left, the plant self-seeds. 

Digitalis obscura Digitalis obscura
(Sunset foxglove, Willow-leaved foxglove)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This foxglove has long-lasting flowers in seductive shades of burnt umber. Its glossy, linear leaves are evergreen in mild climates, but turn brown in colder climates.

no image available Digitalis purpurea 'Pam's Choice'
(Common Foxglove)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a biennial or short-lived perennial, which may last longer and rebloom if deadheaded. It sports dramatic blossoms in contrasting colors in spires reaching six feet high in rich soil, but more likely to 3 or 4 feet. 

Diphylleia cymosa Diphylleia cymosa
(Umbrella leaf)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Wide and distinct umbrella-like leaves form beautiful clumps in a woodland setting. The small white flowers, which persist throughout the season, transform into striking umbels of blue-black berries on cerise stalks.

Disporum sessile 'Variegatum' Disporum sessile 'Variegatum'
(Variegated fairy bells)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar adds attractive white-striped foliage to shady areas, as well as pendent, white, bell-shaped flowers in late spring and early summer, and black berries in fall. The species is native to Japan. Variegated fairy bells grows to about 24 inches tall and wide.

Draba aizoides Draba aizoides
(Yellow whitlow grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Yellow whitlow grass is a small, semi-evergreen perennial perfect for growing in a trough, rock wall, or xeric bed. It grows to only 4 inches high and twice as wide. This delightful, drought-tolerant miniature has spiny rosettes of lustrous green leaves through the winter and cheerful yellow flowers in early spring.

Dryopteris × australis Dryopteris × australis
(Dixie wood fern)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This dramatic fern diplays 4-foot-tall arching fronds that form impressive clumps with age. It is a hybrid of two native ferns and makes a wonderful groundcover.

Dryopteris celsa Dryopteris celsa
(Log fern)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This fern is a tall plant with foliage that looks good all summer long. Upright deep-green fronds are semi-evergreen but topple over in fall. May reach 3 feet.

Dryopteris crassirhizoma Dryopteris crassirhizoma
(Wood fern)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a handsome and lush, semi-evergreen vase-shaped fern with thickly textured leaves that is suitable for specimen treatment. It reaches 3.5 feet tall. Grow in a woodland or moist shade garden.

Dryopteris erythrosora Dryopteris erythrosora
(Autumn fern, Pink shield fern)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In spring, autumn fern’s fronds unfurl a copper red, then turn to bronze, and finally become a shiny dark green. The fronds are upright and lend a lacy texture to the woodland garden. This fern is usually deciduous. -Lou Anella, Regional Picks: Southern Plains, Fine Gardening issue #127

Dryopteris tokyoensis Dryopteris tokyoensis
(Tokyo wood fern)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Tokyo wood fern's ladderlike, upright fronds provide a strong vertical accent to its surroundings. The vase-shaped clumps grow to 18 to 36 inches tall. Grow in a woodland or shade garden.

Duranta erecta Duranta erecta
(Golden dewdrop, Pigeon berry, Sky flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tropical shrub or small tree may be grown in a mixed or shrub border; in colder climates, it does well in a temperate greenhouse. Flowers in shades of sky-blue, lilac, purple, or white blossom gracefully along arching branches in summer; they are followed by spherical, yellow fruit.

Dyckia fosteriana 'Cherry Cola' Dyckia fosteriana 'Cherry Cola'
('Cherry Cola' dyckia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Cherry Cola' , a relatively new cultivar, features deep, dark burgundy foliage and small but sharp teeth (handle with care!). In summer, orange blossoms appear, and hummingbirds love them. Like other Dyckias, this plant tolerates extreme heat and is perfect for hot, dry locations. -Jeff Moore, Regional Picks: Southwest, Fine Gardening issue #120

Eccremocarpus scaber Eccremocarpus scaber
(Chilean glory flower, Chilean glory vine)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This fast-growing, evergreen climber has sharply 4-angled stems and red-orange tubular flowers tipped with yellow that are borne in clusters 4 to 6 inches long. Chilean glory flower blooms from late spring to autumn. Light green leaves are small, ovate, and boldly veined.

Echinacea 'Art's Pride' Echinacea 'Art's Pride'
(Coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cross of E. purpurea 'Alba' and E. paradoxa bears narrow coppery-orange ray petals and prominent deep brown central cones. The fragrant blooms open from early to late summer with sporadic later bloom. It has semi-glossy leaves and grows 2 to 3 feet tall.

Echinacea 'Harvest Moon' Echinacea 'Harvest Moon'
(Coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is one of the exceptional Big Sky™ series (E. paradoxa crossed with E. purpurea), bearing fragrant, earthy-gold petals and golden orange central cones. These hybrids have all inherited the large green leaves, strong branching stems, wide flower petals, and profuse blooming tendencies of E. purpurea.

Echinacea 'Sundown' Echinacea 'Sundown'
(Coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is one of the exceptional Big Sky™ series (E. paradoxa crossed with E. purpurea), bearing fragrant, russet-orange petals and reddish-brown central cones. These hybrids have all inherited the large green leaves, strong branching stems, wide flower petals, and profuse blooming tendencies of E. purpurea.

Echinacea 'Sunrise' Echinacea 'Sunrise'
(Coneflower)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is one of the exceptional Big Sky™ series (E. paradoxa crossed with E. purpurea), bearing fragrant, pale citron petals and green-maturing-to-copper central cones. These hybrids have all inherited the large green leaves, strong branching stems, wide flower petals, and profuse blooming tendencies of E. purpurea.

Echinacea 'Sunset' Echinacea 'Sunset'
(Coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is one of the exceptional Big Sky™ series (E. paradoxa crossed with E. purpurea), bearing fragrant, vibrant salmon-orange petals and brown central cones. These hybrids have all inherited the large green leaves, strong branching stems, wide flower petals, and profuse blooming tendencies of E. purpurea.

Echinacea 'Twilight' Echinacea 'Twilight'
(Coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is one of the exceptional Big Sky™ series (E. paradoxa crossed with E. purpurea), bearing fragrant rose-colored petals and stunning red central cones on 24-inch plants. These hybrids have all inherited the large green leaves, strong branching stems, wide flower petals, and profuse blooming tendencies of E. purpurea.

no image available Echinacea angustifolia
(Coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native meadow perennial has daisy-like blossoms in early summer. It bears copper-orange central cones surrounded by short, arching, ray petals in pink or purple-pink, and occasionally white.

Echinacea purpurea Echinacea purpurea
(Purple coneflower)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Because of its carefree performance, this native meadow perennial with daisy-like flowers appropriately inhabits the gardens of many. It blooms from midsummer into early autumn, with prominent, copper-orange central cones surrounded by rose-purple, ray petals (to 5 inches across).

Echinacea purpurea 'Fragrant Angel' Echinacea purpurea 'Fragrant Angel'
('Fragrant Angel' coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Coneflowers have much to offer the garden, and now they have fragrance, too. 'Fragrant Angel' has large, sweetly scented flowers made up of two rows of white petals surrounding a greenish orange cone. The plants grow to 40 inches and attract butterflies. Grow them in a border, meadow, cottage garden, or cut flower garden.

Echinacea purpurea 'Kim's Knee High' Echinacea purpurea 'Kim's Knee High'
(Purple coneflower)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native meadow derivative is a compact version of the species. It blooms from midsummer into early autumn, with prominent, copper-orange central cones surrounded by drooping, rose- or purple-pink ray petals. It will reach 24 inches if not cut back.

Echinacea purpurea 'Magnus' Echinacea purpurea 'Magnus'
(Purple coneflower)
(12 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native meadow derivative has vibrant, daisy-like flowers that bloom from midsummer into early autumn. Its prominent, dark orange central cones are surrounded by larger (to 7 inches across) and more horizontal, reddish-pink, ray petals than the species.

Echinacea purpurea ‘Bright Star’ Echinacea purpurea ‘Bright Star’
(Purple coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native meadow derivative with daisy-like flowers blooms from early summer into early autumn. 'Bright Star' has prominent, copper-orange central cones surrounded by red-purple ray petals (to 5 inches across), and grows to less than 3 feet tall.

Echinacea purpurea ‘White Swan' Echinacea purpurea ‘White Swan'
(White coneflower)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar of a native meadow coneflower has white, daisy-like flowers from early summer into early autumn. Its prominent, coppery-green, central cones are surrounded by large white ray petals that reach 4.5 inches long.

Echinacea tennesseensis 'Rocky Top' Echinacea tennesseensis 'Rocky Top'
(Tennessee coneflower)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The 'Rocky Top' hybrid offers the garden an abundance of pastel pink coneflowers with greenish-black cones on plants 2 to 3 feet tall and 1 foot wide. Interestingly, the flowers follow the sun like sunflowers and the petals sometimes curl upward slightly. Use this compact coneflower in borders, meadows, or as cut and dried flowers. E. tennesseensis was thought to be extinct in the 1960s, but was rediscovered and is now widely available as a garden plant.

Echinops ritro Echinops ritro
(Small globe thistle)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This compact species has cobweb-like, woolly foliage. The unique spherical flowerheads appear steely blue before maturing to a brighter blue. The late summer flowers add charm of form and texture to a mixed border.

Edgeworthia chrysantha Edgeworthia chrysantha
(Paper bush)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This small shrub from China is noteworthy for its spherical clusters of very fragrant yellow flowers that bloom in winter and early spring.

Elaeagnus pungens Elaeagnus pungens
(Thorny elaeagnus)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a tough evergreen shrub with pendent flowers that provide a delightful gardenia-like perfume during October and November. Brown fruit ripens to red in autumn. Handsome foliage is a lustrous green above, dull and silvery dotted with brown below.

Elaeagnus umbellata Elaeagnus umbellata
(Autumn olive)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Autumn olive is a vigorous, deciduous shrub with pale yellow-white bell-shaped flowers to a half-inch long borne in late spring and early summer. Its silvery fruit turns red in fall and attracts birds. Wavy-margined leaves are silvery when they emerge and mature to bright green above.

Elymus arenarius Elymus arenarius
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant has densely tufted, spreading clumps of strap-like, flowing foliage. Pale blue-gray leaves arch loosely. In summer, it produces stiff, upright, blue-gray spikes of flowers that turn buff.

Emilia coccinea Emilia coccinea
(Tassel flower, Flora's paintbrush)
(1 user review)

A captivating little plant for the front of the border, tassel flower produces small, scarlet-orange pompons which, when viewed from a distance, seem like they’re floating in air. The flowers cluster at the top of wiry stems that rise from a basal rosette of blue-green leaves. Plants occasionally self-sow when sited in a good location. With its small habit, tassel flower lends itself well to container gardens and fresh-cut flower arrangements, adding an element of whimsy. Its delicate and airy nature looks best with bold-leaved or showy plants in the background, creating a see-through effect. To magnify their magic, mass several plants together.

no image available Enkianthus campanulatus
(Redvein enkianthus)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tree-like shrub bears pendent clusters of bell-shaped, creamy-white flowers with rose veins in late spring and early summer. In autumn, the foliage turns magnificent shades of orange and red.

Enkianthus perulatus Enkianthus perulatus
(White enkianthus)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is perhaps the most refined Enkianthus, bearing dainty, white pendulous bells in May. It forms an elegant, rounded shrub to 6 feet with gracefully tiered branches and produces brilliant scarlet color in autumn.

Ephedra equisetina Ephedra equisetina
(Bluestem joint fir)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A member of the conifer clan, Ephedra equisetina is commonly called bluestem joint fir due to its finely textured blue stems. In spring, it features a conspicuous froth of yellow blooms that are often followed by red berries. It is perfect for naturalized areas since it reliably spreads.

Epimedium grandiflorum cvs. Epimedium grandiflorum cvs.
(Longspur barrenwort, Bishop's hat)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Longspur barrenwort is a clump-forming, deciduous, rhizomatous perennial. Leaves, light green and flushed bronze when young, are heart-shaped with spiny margins. Four-petaled white, yellow, pink, or purple flowers, hanging in clusters, appear in mid- and late spring.

Epimedium stellulatum 'Wudang Star' Epimedium stellulatum 'Wudang Star'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Wudang Star' is a clump-forming, evergreen perennial with spiny, glossy foliage. New leaves emerge with bronzy pink edges before turning green in summer. Loose spikes of star-shaped white flowers, borne in spring, have prominent yellow stamens.

Eragrostis chloromelas Eragrostis chloromelas
(Boer love grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

From late spring until fall, Boer love grass puts on a glorious display as inflorescences that emerge silver and dry to gold dance up to 2 feet above the fine-textured clump of foliage. The show is shorter in humid climates.

Eremurus robustus Eremurus robustus
(Foxtail lily, Desert candle)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species produces very tall spires of pale pink flowers with yellow stamens atop leafless stems that puncture vertical space with unmatched elegance.

Erigeron karvinskianus Erigeron karvinskianus
(Fleabane)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Profusion' fleabane is a carpeting, rhizomatous, woody-based perennial with lax, branching stems and abundant yellow-centered white flowers in summer. Blossoms fade to pink and purple. Foliage is hairy and grayish green. Excellent in containers.

Eriogonum umbellatum Eriogonum umbellatum
(Sulfur flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Wild buckwheats have assumed star roles in drought-tolerant landscapes throughout the West, and none is more useful than sulfur flower. It has wonderful evergreen foliage with brilliant blooms from late spring through late summer. Long-lived, this perennial is so adaptable that it also thrives in humid climates.

Eschscholzia californica Eschscholzia californica
(California poppy)
(1 user review)

California poppies grow to about 12 inches tall, and their pretty foliage is ferny, like carrot tops. They come in a variety of colors, from the standard golden orange, to yellow, cream, and red. Grow them in a border or rock garden.

no image available Eschscholzia californica 'Rose Chiffon'
(Rose chiffon)
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California poppies grow to about 12 inches tall, and their pretty foliage is ferny, like carrot tops. This cultivar has soft rose colored, double blooms with yellow centers.

no image available Eucomis bicolor
(Pineapple lily, Pineapple flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species boasts maroon-speckled stems and green flowers with maroon margins. The flowers occur on thick, solitary stalks bearing bottle-brush-like wands of tightly-clung florets, which are crowned by tufts of green bracts. As the common name implies, these unusual and magnificent inflorescences are reminiscent of pineapples.

no image available Eucomis comosa
(Pineapple lily, Pineapple flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species boasts stems and undersides of leaves with maroon spotting, and white flowers tinged with maroon. The flowers form on 24-inch-long, thick stalks bearing bottle-brush-like wands of tightly-clung florets, which are crowned by tufts of green bracts. As the common name implies, these unusual and magnificent inflorescences are reminiscent of pineapples.

Eucomis comosa 'Oakhurst' Eucomis comosa 'Oakhurst'
(Pineapple lily, Pineapple flower)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This bulbous perennial has striking reddish purple, strap-like leaves and foot-long purple flowers that resemble pineapples in late summer. Grow in a sunny border, container, or greenhouse. Plants used outdoors may be overwintered in a frost-free location. The species is native to South Africa.

Eucomis comosa 'Sparkling Burgundy' Eucomis comosa 'Sparkling Burgundy'
(Pineapple lily, Pineapple flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This outstanding cultivar boasts dark burgundy leaves that slowly change to olive green, and then revert back dramatically as the flowers fade. The flowers form on 20- to 30-inch stalks bearing bottle-brush-like wands of tight, smokey pink florets, which are crowned by tufts of purple bracts. As the common name implies, these unusual and magnificent inflorescences are reminiscent of pineapples.

Euonymus atropurpureus Euonymus atropurpureus
(Eastern wahoo)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Because it is a relative of the immensely popular burning bush (E. alatus), it isn't surprising that eastern wahoo has great fall color. This North American native grows as a small tree in the southern part of its range and as a large shrub on the Plains. The bright red of its fall foliage is amplified and extended by abundant clusters of scarlet fruits that persist after the leaves have fallen, providing color even into midwinter. Eastern wahoo is effective as an accent plant or when massed wherever a bold, surprising splash of color is desired.

no image available Euonymus fortunei cvs.
(Wintercreeper)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Prostrate to mound-forming, vigorous evergreen shrubs have oval, toothed, dark green leaves. Cultivars vary in foliage color and variegation, form, climbing or creeping habit, and fall interest.

Eupatorium 'Phantom' Eupatorium 'Phantom'
('Phantom' Joe Pye weed)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Phantom' Joe Pye weed is an excellent 3-foot-tall perennial that was bred especially for smaller gardens and mixed containers. Plants have dark green, whorled foliage and handsome lavender to purple flower heads in late summer and fall. The blooms are darker when night temperatures are cool. Joe Pye weed attracts butterflies and other insects.

Eupatorium dubium 'Little Joe' Eupatorium dubium 'Little Joe'
(Joe Pye weed)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Little Joe' is a dwarf cultivar of a species of our native Joe Pye weed. It can reach 3 or 4 feet tall and 2 to 3 feet wide, and it has the familiar large domes of lavender-pink flowers that attract lots of butterflies in late summer and early fall. Its smaller size makes it a better fit in moist borders, beds, meadows, or roadside plantings.

Eupatorium maculatum Eupatorium maculatum
(Joe Pye weed)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Large, flat-topped flowerheads in shades of purple add soft color and texture to the summer and fall garden. The leaves are purple-tinged on thick stems with maroon spots. Butterflies love this eastern U.S. native.

Eupatorium maculatum 'Gateway' Eupatorium maculatum 'Gateway'
('Gateway' Joe Pye weed)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar of the eastern North American native Joe Pye weed is shorter and bushier than the species. From late summer into fall, its domes of dusky pink flowers attract butterflies and other insects. The seedheads persist well into winter. Grow 'Gateway' in a border, meadow, or cottage garden. It does best in soil that does not dry out.

Eupatorium purpureum Eupatorium purpureum
(Joe Pye weed)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Large, domed flowerheads of pink, light purple, or off-white add soft color and texture to the summer and fall garden. The leaves are purple-tinged on thick stems suffused with maroon. This eastern U.S. native attracts butterflies from mid-summer to early fall.

no image available Eupatorium rugosum
(White snakeroot)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This eastern U.S. woodland plant has clusters of small, fluffy white flowers topping stiff 3- to 5-foot-tall stems midsummer to frost. 

Eupatorium rugosum 'Chocolate' Eupatorium rugosum 'Chocolate'
(White snakeroot)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The deliciously colored maroon-brown leaves contrast nicely with neighboring plants through the season. Pure white flowerheads bloom in midsummer and stay open well into autumn.

Euphorbia 'Black Bird' Euphorbia 'Black Bird'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

With velvety foliage that darkens to near black in full sun, 'Black Bird' euphorbia looks good in perennial borders and is especially striking in containers. Flowers open above bright, lime green bracts on red stems that form a compact vase shape. -Pat McKernan, Regional Picks: Midwest, Fine Gardening issue #120

Euphorbia 'Diamond Frost' Euphorbia 'Diamond Frost'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This hybrid produces masses of pure white bracts above finely textured, apple green foliage. It adds stunning texture and color to a border in partial shade.

no image available Euphorbia 'Helena’s Blush™'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This hybrid has petite green-and-cream variegated foliage with a hint of pink on the undersides. It produces chartreuse and apple green bicolored bracts on airy stems.

Euphorbia 'Jade Dragon' Euphorbia 'Jade Dragon'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant makes a riveting focal point in the border, with golden bracts with red centers that open just above the burgundy-tinted, dark green leaves in spring to summer.

Euphorbia amygdaloides Euphorbia amygdaloides
(Wood spurge)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Wood spurge is a soft, hairy, evergreen perennial with red-tinged stems and matte dark green leaves with red tones underneath. In mid-spring to early summer, it produces 8-inch-tall, greenish-yellow bracts.

no image available Euphorbia amygdaloides ‘Rubra’
(Wood spurge)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar has a compact, bushy habit to 20 inches tall and purple-red flushed leaves, especially on new growth and in winter. It produces yellow bracts in mid-spring and early summer.

no image available Euphorbia characias
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This upright, evergreen shrub has stunning texture and form. Its gray-green leaves and woolly, purple-tinged stems form billowy, 4-foot long branches. From early spring to early summer, it produces giant cylindrical bract clusters in yellow-green with purple-black nectar glands, and creates a specimen that looks otherworldly.

Euphorbia cotinifolia Euphorbia cotinifolia
(Tropical smoke bush, Caribbean copper plant)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

With its woody stems and oval-shaped leaves, this perennial looks a lot like a tree. Like other members of the euphorbia family, it has milky sap and tiny flowers. Most of the appeal comes from the leaf color. dark burgundy on older leaves, a brighter red on new foliage. The foliage generally dies back in winter. -Jeff Moore, Regional Picks: Southwest, Fine Gardening issue #120

no image available Euphorbia dulcis
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species produces erects stems of bronzy green leaves and greenish yellow bracts in early summer. In autumn, its leaves turn shades of red, orange, and gold.

Euphorbia dulcis 'Chameleon' Euphorbia dulcis 'Chameleon'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This notable species produces erect stems of bronzy burgundy leaves and purple-green bracts in early summer. It looks exceptional when placed near contrasting plants. The foliage may be cut back after flowering to produce fresh growth.

Euphorbia griffithii Euphorbia griffithii
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species has red stems and dark green leaves, which emerge in spring with a reddish tinge. In early summer, it bears conspicuous bracts of orange-red or red. 

Euphorbia griffithii 'Fireglow' Euphorbia griffithii 'Fireglow'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Fireglow' bears conspicuous bracts in vivid orange-fuchsia in early summer. It has red stems and dark green leaves, which emerge in spring with a reddish tinge.  

Euphorbia inneuphdia

Euphorbia inneuphdia


(Diamond Frost® euphorbia)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Diamond Frost euphorbia is an absolute workhorse in the garden, blooming almost the entire planting season and with no deadheading needed. Don't let its delicate appearance fool you - it's exceptionally resistant to both heat and frost.

no image available Euphorbia myrsinites
(Myrtle spurge)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Long-lasting, terminal clusters of lime green bracts and flowers punctuate the meandering 'arms' of this ground-hugging species. The chalky seafoam foliage looks great spilling over a stone wall in a rock garden or at the edge of any bed.

Euphorbia palustris Euphorbia palustris
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This robust perennial forms a large shrub that adds a nice textural element to the back of the border. In early spring it produces 6-inch-wide, vivid yellow bracts.

Euphorbia polychroma Euphorbia polychroma
(Cushion spurge)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Electric yellow bracts bloom on a low cushion in April and persist, but gently fade as the stems elongate to form a 16-inch mound by midsummer. The leaves produce shades of red, orange, and purple in autumn.

no image available Euphorbia rigida
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species is similar to E. myrsinites, but its habit is first erect before spreading, and its steely blue leaves are more narrow and pointed. It also bears terminal yellow bracts from early spring to summer.

Fagus sylvatica 'Purple Fountain' Fagus sylvatica 'Purple Fountain'
(Purple fountain beech, European beech)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Purple Fountain' is a deciduous, columnar, dark-leaved tree with bronze-purple, wavy margined leaves and cascading branches. Leaves become more green as summer wears on. It can be used as a specimen tree or for pleaching. It is similar to the purple weeping beech but is much more columnar. Fall color is yellow, then orange-brown.

Farfugium japonicum 'Aureomaculatum' Farfugium japonicum 'Aureomaculatum'
(Farfugium)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Green-and-yellow mottled, shiny, kidney-shaped leaves distinguish this evergreen perennial native to streamsides and seashores in East Asia. The large, leathery leaves can reach a foot across. The yellow flowers bloom in fall and winter, but they are small and secondary to the foliage. Farfugium are nice at waterside, as a groundcover, in a border, or in containers.

no image available Farfugium japonicum 'Crispatum'
(Farfugium)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This evergreen foliage plant has large, leathery leaves and daisy-like yellow flowers. It looks great in the border or in containers. 

Fargesia nitida Fargesia nitida
(Fountain bamboo)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This striking clump-forming bamboo, with olive-purple stems, dark green leaves, and an upright habit, is suitable for screening. May be grown in a container if provided with adequate moisture.

Festuca glauca 'Boulder Blue' Festuca glauca 'Boulder Blue'
(Blue fescue, Gray fescue)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Regarded by some as the bluest blue fescue, this plant forms compact, cascading mounds of foot-tall, intensely blue, narrow leaves that are attractive in all seasons. Blooms are generally secondary to the foliage, but this cultivar blooms more heavily than most, with spikelets in summer. This cultivar is long-lived and very hardy. Grow in groups in a border or rock garden, or as a groundcover. 

Festuca glauca 'Elijah Blue' Festuca glauca 'Elijah Blue'
(Blue fescue, Gray fescue)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

These compact tufts of 8-inch-long powder-blue leaves are well suited for edging and naturalizing in the rock garden. 

Festuca mairei Festuca mairei
(Atlas fescue)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This sturdy groundcover is fast becoming one of the most dependable grasses for creating drought-tolerant meadows. Clumping evergreen foliage is a rich khaki green and grows in an arching clump. The flowers, while noticeable, are not showy. Atlas fescue is at its best in groups and grows in all but hot, humid, and low desert climates.

Forsythia ‘Courtasol’ Forsythia ‘Courtasol’
(Forsythia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Like other cultivars of this genus, 'Courtasol' is as tough as nails. The biggest difference from the rest, however, lies in its form. The stems reach to only 18 inches tall before arching down to the ground and running along to yield a 5-foot-wide spread. Its grapefruit yellow flowers appear in early spring.

no image available Forsythia × intermedia 'Kolgold'
(Forsythia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Striking, extra-large yellow blooms cover each stem from base to tip in early spring.

Forsythia spp. and cvs. Forsythia spp. and cvs.
(Forsythia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Its blaze of yellow flowers is surely one of the first harbingers of spring. Forsythia are widely recognized for their utility in a shrub border, a bank, or for hedging, and their light to deep yellow, four-petaled flowers.

Fothergilla gardenii Fothergilla gardenii
(Dwarf fothergilla)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Fragrant, cylindrical inflorescences are made up of long, white filaments, and open before the leaves in spring. In autumn, the foliage shades range from blood red to blazing yellow, and every shade in between.

Fothergilla gardenii 'Jane Platt' Fothergilla gardenii 'Jane Platt'
('Jane Platt' fothergilla )
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar of a favorite fall shrub has the same great spring flowers as the rest of the species. But its brilliant fall color remains longer and later than its cousins, holding its strong orange, red, and yellow tones into late November or even early December. 'Jane Platt' also features a mounding habit rather than the upright habit common to the species. Fothergillas are often recommended for shade, but this one is tough enough to be grown between rocks in hot, full sun.

Fritillaria imperialis Fritillaria imperialis
(Crown imperial)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species draws much attention with its striking gaiety of color and form. Its large, bell-shaped flowers in shades of orange, yellow, and red dangle from tufts of shiny green leaf bracts. Sitting atop sturdy, 3-foot stalks, the flowers make a surprising and regal statement in the late spring garden.

Fuchsia 'Coralle' Fuchsia 'Coralle'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Coralle' is an upright fuchsia with vivid red-orange pendent flowers and velvety dark green leaves with maroon undersides.

Fuchsia 'Gartenmeister Bonstedt' Fuchsia 'Gartenmeister Bonstedt'
(Fuchsia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar boasts single, long-tubed, brick red flowers and dark bronze-red leaves and stems.

Fuchsia magellanica Fuchsia magellanica
(Fuchsia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This erect shrub grows to 10 feet high and wide and produces many small, tubular, pendent flowers in shades of red, pink, and sometimes white. Flowers are followed by reddish purple fruits. Native to Chile and Argentina, Fuchsia magellanica is hardy in Zones 6-9 and adds bright colors and a tropical feeling to the garden. Use as a specimen or in a bed or border.

Fuchsia magellanica 'Riccartonii' Fuchsia magellanica 'Riccartonii'
(Fuchsia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar has dark green leaves with a faint bronze sheen. Its narrow, dangling, red and purple flowers bloom throughout the season.

no image available Fuchsia Shadow Dancer™ Ginger
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A bushy, compact fuchsia, Shadow Dancer™ Ginger has pale pink and white flowers that dangle gracefully out of pots, baskets, or window boxes. The blooms attract hummingbirds and butterflies. Hardy in Zones 9-11, it can be grown as an annual.

Gaillardia 'Arizona Sun' Gaillardia 'Arizona Sun'
(Blanket flower)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This 2005 All-America Selections® winner is a cultivar of our native blanket flower. It covers itself in large reddish flowers with yellow edges up to a month earlier than other gaillardia. Growing to just about a foot tall and wide, it is beautiful at the front of a border.

Gaillardia pulchella Gaillardia pulchella
(Blanket flower, Indian blanket)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Blanket flower is a bushy annual that produces red or yellow (or red and yellow) flowers over a long season. The blooms are daisy-shaped with a dark purple central disk. Growing to about 18 inches tall, this native of central and southern U.S. and Mexico is nice in a meadow, cut flower garden, border, or rock garden.

Galanthus nivalis Galanthus nivalis
(common snowdrop)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Snowdrops are some of the earliest bulbs, and flowers in general, to bloom in spring. Galanthus nivalis is the most common species, and its cultivars are the most commonly grown snowdrops on the market. They are reliably hardy and perennial. They grow to 4 inches tall and wide and flower in mid- to late winter, long before most other plants. They are the first sign of spring around the corner. Flowers are nodding and white.

Galtonia candicans Galtonia candicans
(Summer hyacinth, Spire lily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A native of South Africa, summer hyacinth sends up spikes of lovely white flowers in late summer amidst dark green, strap-like foliage, when many other perennials are done blooming. The tall spikes are fragrant and especially dramatic planted with darker foliage or flowers.

Gardenia augusta 'MADGA 1' Gardenia augusta 'MADGA 1'
(Heaven Scent® gardenia )
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This gardenia cultivar features a very tight, upright form that is perfect for smaller gardens. It also boasts increased cold tolerance while maintaining the lustrous dark green foliage and abundant fragrant blooms you’ve come to expect from this genus.

Gaultheria procumbens Gaultheria procumbens
(Wintergreen, Checkerberry)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This creeping, rhizomatous shrublet grows to 6 inches, with scalloped or bristly toothed, glossy, dark green leaves. Foliage has a strong wintergreen scent when crushed. Urn-shaped white or pale pink flowers appear in summer and mature to aromatic scarlet fruit that often persists into the following spring.

no image available Gaultheria shallon
(Salal, Shallon)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This compact, bushy shrub has red shoots and ovate, pointed, glossy dark green leaves. Arching racemes of urn-shaped white flowers tinged with pink appear in late spring and early summer, maturing to fleshy, spherical, purple fruit measuring a half-inch across.

Gaura lindheimeri Gaura lindheimeri
(Wand flower, White gaura, Butterfly gaura)
(6 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This North American wildflower is a bushy, clump-forming, vase-shaped perennial with lance-shaped or spoon-shaped, toothed leaves on slender, wand-like stems. Leaves may be occasionally spotted with maroon. Loose panicles of 4-petaled white flowers open only a few at a time and fade slowly to pink, blooming from late spring to early autumn.

Geranium 'Ann Folkard' Geranium 'Ann Folkard'
(Geranium)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This superb plant exhibits dark-eyed magenta flowers that are set off by chartreuse leaves. Even better, though, is the way it weaves its way through neighboring plants, creating fabulous plant combinations with little effort.

Geranium 'Rozanne' Geranium 'Rozanne'
(Hardy geranium)
(32 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The large blooms of this perennial are a spectacular violet-blue with a white throat and darker venation on plants 1 to 2 feet tall and wide. The attractive foliage weaves itself through neighboring plants. Grow in borders, containers, or rock or cottage gardens. 'Rozanne' is most effective en masse. 

Geranium ‘Johnson's Blue’ Geranium ‘Johnson's Blue’
(Cranesbill)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This popular perennial is grown for its blue or lavender-blue, saucer-shaped flowers that bloom for many weeks. It is useful in borders, rock gardens, and containers. It quickly reaches about 18 inches tall and 2 or 3 feet wide.

Geranium × oxonianum 'Wargrave Pink' Geranium × oxonianum 'Wargrave Pink'
(Cranesbill)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Wargrave Pink' is a vigorous perennial suitable for groundcover. The notched, funnel-shaped, salmon-pink flowers bloom all season. 

Geranium himalayense Geranium himalayense
(Cranesbill)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant bears rich medium blue to violet-blue flowers from 1.5 to 2.5 inches wide in early summer, and blooms sporadically throughout the summer. 

no image available Geranium macrorrhizum 'Bevan's Variety'
(Bigroot geranium)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Thick rhizomes and stout, sprawling stems guarantee this hardy geranium survivor status. It forms dense mats of foliage in no time, making a perfect large-scale groundcover. The foliage is aromatic, particularly when touched, and transforms to red in fall. The magenta-pink flowers are conspicuously veined. 'Bevan's Variety' grows to slightly more than a foot tall with indefinite spread.

no image available Geranium maculatum
(Spotted geranium)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This upright plant bears cupped flowers 1.5 inches across in variable hues of pale to bright pink from late spring to midsummer. 

no image available Geranium maculatum 'Elizabeth Ann'
(Spotted geranium)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This gorgeous cultivar of the North American species has rich, chocolate brown foliage and contrasting lavender blooms. 

Geranium nodosum Geranium nodosum
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This attractive groundcover blooms all summer and is tolerant of diverse habitats. It has glossy leaves and notched, 1.25-inch lilac-pink flowers with darker veins.

Geranium pratense 'Dark Reiter' Geranium pratense 'Dark Reiter'
('Dark Reiter' geranium)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Dark Reiter', a fairly new cultivar, has a short mounded habit and dissected dark leaves. Bright lilac-blue blossoms appear in spring, and trimming the plant back after flowering encourages more blooms in fall and helps maintain its neat habit. 'Dark Reiter' is slow growing, making it perfect for a rock garden. Like many other geraniums, it does not appeal to deer. Pair silver-toned foliage plants with 'Dark Reiter' for a stunning effect. -Teresa Smith, Regional Picks: Northeast, Fine Gardening issue #120

Geranium pratense 'Midnight Reiter' Geranium pratense 'Midnight Reiter'
(Meadow cranesbill)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Deeply cut plum-purple leaves emerge in spring and stay true to color throughout the season. Lavender-blue flowers bloom beginning in late spring. 'Midnight Reiter' grows to only about 6 or 8 inches tall and twice as wide. More shade causes the foliage to be greener.

no image available Geranium psilostemon
(Cranesbill)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Upright, magenta flowers form shallow cups with jet-black centers and veins bloom in summer. The leaves have deep-pink tints and color nicely in the fall.

Geranium sanguineum Geranium sanguineum
(Bloody cranesbill)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A profusion of delicate, magenta-pink, upward-facing blossoms cover this plant over a long period. The leaves are deeply divided and add texture to the plant's rounded form. 

Geranium sanguineum var. striatum Geranium sanguineum var. striatum
(Bloody cranesbill)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A profusion of delicate pink, upward-facing blossoms cover this plant over a long period. The leaves are deeply divided and add texture to the plant's rounded form. 

no image available Geum triflorum
(Prairie smoke, Purple avens)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This prairie native bears nodding, pinkish-maroon flowers in spring, followed by seed heads that resemble wisps of cotton candy and connote the plant's common name. The upright, ferny foliage is beautiful, and can be evergreen in mild climates. 

Gladiolus 'Atom' Gladiolus 'Atom'
(Gladiolus)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A glad for people who would normally never grow them, 'Atom' is about half the size of regular varieties, growing to at most 3 feet tall. This 1946 classic blends easily into perennial borders, and it won't get lost because its flowers are blazing red cooled by a thin, silvery edge.

Gladiolus 'Carolina Primrose' Gladiolus 'Carolina Primrose'
(Gladiolus)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This 3-foot-tall, small-flowered perennial glad was originally collected from an abandoned home site in North Carolina. Pure yellow with a wildflowery grace, it seems to be a form of a wild South African glad introduced about 1900 as Gladiolus primulinus.

Gladiolus 'Dauntless' Gladiolus 'Dauntless'
(Gladiolus)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Introduced in 1940, 'Dauntless' grows to 4 feet tall and has pale pink flowers with deep pink/red throats.

Gladiolus 'Fidelio' Gladiolus 'Fidelio'
(Gladiolus)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This 3- to 4-foot-tall glad has luminous deep purplish-rose flowers. It dates from 1959 and is called 'Fidelio' after Beethoven's joyous opera.

no image available Gladiolus communis ssp. byzantinus
(Byzantine gladiolus)
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These vigorous perennials have linear leaves to 24 inches long. Spikes of up to 20 funnel-shaped, marked, deep magenta flowers appear in spring.

Gomphrena globosa 'Purple' Gomphrena globosa 'Purple'
(Globe amaranth)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A bushy, hairy-leaved annual, globe amaranth bears round purple flower bracts on thick stems in summer and early fall. This plant is useful as summer bedding or in a border or cutting garden. It is fairly drought tolerant and very heat tolerant. It grows to about 2 feet tall.

Gomphrena haageana 'Strawberry Fields' Gomphrena haageana 'Strawberry Fields'
(Gomphrena)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

An upright, bushy annual with flowers (actually bracts) that resemble bright red strawberries with tiny yellow "seeds." Flowers are produced from summer to early fall and are great for cutting and drying. Leaves are hairy. Gomphrena is fairly drought tolerant and very heat tolerant. Use as bedding, in a border, or in a cut flower garden.

Goodyera pubescens Goodyera pubescens
(Jewel orchid, Downy rattlesnake plantain)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native terrestrial orchid produces basal rosettes of striking silvery-veined evergreen foliage. Small white flowers are borne on single slender stems about 6 to 10 inches tall in late summer.

Grevillea 'Moonlight' Grevillea 'Moonlight'
('Moonlight' grevillea)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This stunning shrub blooms all year in some climates. A fast grower, its large, moonlight-colored flowers and finely divided, gray foliage are a must for any southern-temperate garden. Frost and drought tolerant once established, it attracts bees and hummingbirds and makes an excellent screening shrub.

Habranthus robustus Habranthus robustus
(Rain lily, Zephyr lily, Fairy lily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Pale pink flowers pop up suddenly after a summer rainstorm and resemble small amaryllis flowers on this native of Brazil. In the proper conditions, they can multiply rapidly and carpet the garden.

Hakea laurina Hakea laurina
(Pincushion hakea)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Through the fall and into winter, pincushion hakea provides beautiful cut flowers for the holidays; the foliage and seedpods are also great for arrangements. You can prune it into a bushy shape or a slender, small tree. As a member of the Protea family, pincushion hakea does not like phosphorus fertilizer, and like most Australian plants, it prefers to be well mulched so that its specialized roots can extract nutrients from the mulch layer.

Hakonechloa macra 'Aureola’ Hakonechloa macra 'Aureola’
(Golden Japanese forest grass)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Brightly variegated golden foliage with green stripes near the leaf margins give this Japanese forest grass its distinctive look. Too much shade can cause the golden portion to fade to lime green. This slow-growing may not reach a mature size for three years, but it is definitely worth the wait. -Matt Griswold, Regional Picks: Northeast, Fine Gardening issue #127

Hamamelis × intermedia 'Arnold Promise' Hamamelis × intermedia 'Arnold Promise'
(Witch hazel)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This vase-shaped, deciduous shrub, up to 12 feet tall and wide, has ascending branches and bright green leaves that turn yellow in autumn. It produces large yellow flowers in mid- and late winter on the bare branches. A cross between H. japonica and H. mollis.

no image available Hamamelis mollis
(Chinese witch hazel)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This witch hazel is an upright shrub up to 12 feet tall and wide, with oval, softly hairy, mid-green leaves that turn yellow in autumn. Fragrant flowers are yellow, with crimped petals, appearing on bare branches in mid- and late winter.

Hamamelis mollis 'Pallida' Hamamelis mollis 'Pallida'
(Witch hazel)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This vase-shaped deciduous shrub grows up to 12 feet tall and wide, with ascending branches and bright green leaves that turn yellow in autumn. Clusters of sulfur-yellow flowers appear in mid- and late winter.

Hamamelis virginiana Hamamelis virginiana
(Common witch hazel)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The native common witch hazel is an understory plant that becomes leggy if it has to reach for light, but in the open, it develops into a graceful, spreading shrub about 20 feet tall. Its broad leaves turn a clear, bright yellow in the autumn. The abundance of pale yellow fall flowers that accompanies the foliage comes as a wonderful late-season surprise. The deceptively fragile-looking blossoms that appear near the end of October seem to keep winter at bay for weeks.

Hamelia patens Hamelia patens
(Mexican fire bush, Scarlet bush, Firecracker shrub)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A tropical tree by design, the Mexican fire bush freezes to the ground in winter in Zones 8-11, but grows up to 5 feet tall by summer's end. The erect, branched, woody stems bear simple copper-toned leaves with small orange flowers bunched along the tips. It loves the heat, and the more you can give it, the more vigorous it will be.

Hedera helix and cvs. Hedera helix and cvs.
(English ivy)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

English ivy is a self-clinging climber or trailing perennial with almost flat, palmately 5-lobed leaves. Cultivars are available with varying leaf form, color, and variegation, as well as use and climbing habit.

Helenium ‘Butterpat’ Helenium ‘Butterpat’
(Sneezeweed)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Sneezeweed is a clump-forming perennial with sturdy, branching stems and mid-green leaves. In August and September, masses of 2-inch, daisy-like yellow flowers are borne in large, loose terminal clusters on leafy 4- to 5-foot tall stems.

Helianthus angustifolius Helianthus angustifolius
(Swamp sunflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A profusion of golden yellow flowers appears for two to three weeks starting in early autumn. Daisy-like flowerheads are 3 inches across with 15 to 20 yellow ray florets radiating from a flat-topped purple or dark brown cone. The entire plant looks like a giant flame, drawing the attention of gardeners and many species of butterflies, bees, and other nectar feeders.

Helianthus annuus and cvs. Helianthus annuus and cvs.
(Sunflower)
(1 user review)

Sunflowers are some of the easiest plants to start from seed. They are available in numerous cultivars which span the range of heights, flower colors, and form.

Helianthus debilis Helianthus debilis
(Branching sunflower)
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These branching plants with thick stems and glossy mid-green leaves grow 5 to 6 feet tall. Slightly nodding flowerheads 2.5 inches or more across appear in summer. Bright yellow ray florets are sometimes flushed with red or purple-red disk florets.

Helianthus grosse-serratus Helianthus grosse-serratus
(Sawtooth sunflower)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Sawtooth sunflower's abundant yellow daisy flowers bloom from late summer well into fall. The dark green, narrow leaves have a leathery gloss. A well-behaved plant, sawtooth sunflower forms a thick, slowly expanding clump. It can reach 10 feet and taller, depending on conditions.

Helictotrichon sempervirens Helictotrichon sempervirens
(Blue oat grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Dramatic powder blue foliage and spiky architecture are hallmarks of this plant. The leaves resemble rigid, tapering pieces of steel blue linguine collected in a porcupine-like dome.

Heliopsis helianthoides Heliopsis helianthoides
(False sunflower, Ox eye, Woodland sunflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clump-forming perennial bears striking, sunflower-like yellow blooms on long stalks from midsummer to early autumn.

no image available Heliopsis helianthoides 'Summer Nights'
(False sunflower, Ox eye)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Summer Nights' has a clumping form, sturdy wine-purple stems, and bronze-tinted leaves. It bears striking deep golden-orange blooms with orange-red centers from June until August.

Heliotropium arborescens 'Marine' Heliotropium arborescens 'Marine'
(Heliotrope, Cherry pie)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Marine' heliotrope has a compact form with broadly oval to lance-shaped, wrinkled leaves tinged with purple. In summer, it bears a profusion of fragrant deep violet-blue flowerheads up to 6 inches across.

Heliotropium arborescens cvs. Heliotropium arborescens cvs.
(Heliotrope, Cherry pie)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Heliotrope has a compact form with broadly oval to lance-shaped, wrinkled leaves tinged with purple. In summer, it bears a profusion of deep violet-blue or lavender-blue flowerheads up to 6 inches across. Cultivars vary in height as well as bloom fragrance and color.

Helleborus 'Ivory Prince' Helleborus 'Ivory Prince'
(Hellebore)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Year-round gray-green foliage persists through shade and snow and is fairly deer and rabbit resistant. Flowers appear in early spring with daffodils and tulips. This cultivar produces flowers that sit well above the foliage and point upward, which adds to its showiness.

Helleborus × hybridus cvs. Helleborus × hybridus cvs.
(Hellebore)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

From late fall through winter, the leathery leaves of hellebores stay glossy, cheery, and green. Hybrids of H. orientalis and other species have a clump-forming habit and leathery leaves. They begin blooming in February or March in a range of shades, adding much needed color very early in the season. The blooms last for a very long time, especially if the weather stays cool. Hellebores are tolerant of summer heat and humidity. -Marty Hair, Regional Picks: Upper Midwest, Fine Gardening issue# 127

Helleborus argutifolius ‘Janet Starnes’ Helleborus argutifolius ‘Janet Starnes’
(Corsican hellebore)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This perennial evergreen has white-speckled leaves with toothed edges. It produces abundant yellow flowers in late winter and early spring.

Helleborus foetidus Helleborus foetidus
(Stinking hellebore, Bear's foot, Dungwort, Stinkwort)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The early, long-lasting, sometimes fragrant blooms of this hellebore are borne in clusters in late winter to early spring. The pendent flowers are a muted yellow-green, often with purple margins, and have large pale green bracts. Helleborus foetidus has dramatic, deeply-cut foliage that holds up through the winter. Leaves smell unpleasant when crushed.

Helleborus odorus Helleborus odorus
(Fragrant hellebore)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Lime-green to near-yellow flowers 1 to 2 inches across, with five petal-like sepals, are borne in loose clusters of three or four on leafy stems up to 20 inches tall. Blooms emerge in late winter or early spring, fading to pale green and lasting until seeds are ripe. There is great variation in fragrance, flower color and size, as well as leaf form, across different plants.

Helleborus odorus 'Double Queen' Helleborus odorus 'Double Queen'
(Lenten rose, hellebore)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Hellebores begin blooming in mid-winter in a range of colors, adding much needed color very early in the season. They bloom when the temperature is below freezing, even amidst the snow. Protect from cold winter winds, especially when not insulated by snow, to avoid damaged foliage. Avoid ingestion of all plant parts and contact with the sap.

Helleborus orientalis Helleborus orientalis
(Lenten rose)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This hairless or slightly hairy perennial has over-wintering, leathery, deep green basal leaves each divided into 7 or 9 leaflets. From January until May, masses of white or greenish-cream flowers, becoming pink with age, appear on branched stems.

Helleborus x ballardiae 'HGC Pink Frost' Helleborus x ballardiae 'HGC Pink Frost'
('HGC Pink Frost' hellebore)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

‘HGC Pink Frost’ is part of a new series of hellebores that, for the Midwest, bloom very early, some as early as January; this cultivar blooms a bit later, usually in March. The bud count is high, with buds coming out in February all along the plant stem. They start out a deep burgundy but open to soft pink, then age to earthy rose shades. Flowers rise above the foliage, so they are never hidden, and they face outward, creating maximum interest. -Irvin Etienne, Fine Gardening issue 147, page 72

Hemerocallis 'Armani' Hemerocallis 'Armani'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Autumn Minaret' Hemerocallis 'Autumn Minaret'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Baby Fresh' Hemerocallis 'Baby Fresh'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Banana Boat' Hemerocallis 'Banana Boat'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Beauty to Behold' Hemerocallis 'Beauty to Behold'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Becky Lynn' Hemerocallis 'Becky Lynn'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Blackeyed Stella' Hemerocallis 'Blackeyed Stella'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Brazilian Orange' Hemerocallis 'Brazilian Orange'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Catalyst' Hemerocallis 'Catalyst'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Charles Johnston' Hemerocallis 'Charles Johnston'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Chorus Line' Hemerocallis 'Chorus Line'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Condilla' Hemerocallis 'Condilla'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Cool Jazz' Hemerocallis 'Cool Jazz'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Crystal Cupid' Hemerocallis 'Crystal Cupid'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Dixie Hummingbird' Hemerocallis 'Dixie Hummingbird'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Elijah' Hemerocallis 'Elijah'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Elizabeth's Magic' Hemerocallis 'Elizabeth's Magic'
(Daylily)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'English Witch' Hemerocallis 'English Witch'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Daylilies are classic, extremely popular garden plants. They feature long, arching, strappy leaves and long stems of generally 6-petaled flowers, though double flowers are popular as well. Each flower lasts only one day, hence the plant’s common name. Daylilies come in a wide range of colors, from cream and cheery yellow to peach, orange, fiery red, deep burgundy, pink, and purple. Some have contrasting throats and "eye-zones." Daylilies are ideal for a mixed herbaceous perennial border.

Hemerocallis 'Forsyth Lemon Drop' Hemerocallis 'Forsyth Lemon Drop'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Forsyth Lemon Drop' is lovely and cheerful daylily cultivar.

Hemerocallis 'Frances Fay' Hemerocallis 'Frances Fay'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This floriforous daylily is a melony yellow.

Hemerocallis 'Froufrou' Hemerocallis 'Froufrou'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Froufrou' gets its name from its small, ruffled yellow petals.

Hemerocallis 'Garden Portrait' Hemerocallis 'Garden Portrait'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar has pale yellow, spider-like blooms and no fragrance.

Hemerocallis 'Girl Scout' Hemerocallis 'Girl Scout'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Girl Scout' has large, bright yellow flowers.

Hemerocallis 'Happy Returns' Hemerocallis 'Happy Returns'
(Daylily)
(15 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This pale-yellow-flowered daylily distinguishes itself with its profuse bloom and compact size (only 16 inches tall), making it good for containers and the borders. It is an early season bloomer with circular flowers that open in late afternoon and last through the night.

Hemerocallis 'Indonesia' Hemerocallis 'Indonesia'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This daylily has cheerful, ruffly yellow-orange flowers.

Hemerocallis 'Jan's Twister' Hemerocallis 'Jan's Twister'
(Daylily)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Jan's Twister' has large, light coral, spiderlike flowers and no fragrance.

Hemerocallis 'Jungle Fever' Hemerocallis 'Jungle Fever'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Red daylily with a yellow center.

Hemerocallis 'Just Plum Happy' Hemerocallis 'Just Plum Happy'
('Just Plum Happy' daylily)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This everblooming daylily is a member of the Happy Ever Appster(R) family of daylilies. All Happy Ever Appster daylilies are offspring of the popular 'Happy Returns' daylily and were developed by Dr. Darrel Apps, famous daylily hybridizer. 'Just Plum Happy' flaunts 6-inch-wide, bright rose-pink blooms with purple centers on stems 12 to 16 inches tall from June to frost above a clump of deep green, strappy leaves 18 to 24 inches wide.

Hemerocallis 'Kate Carpenter' Hemerocallis 'Kate Carpenter'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Peach daylily with yellow accents.

Hemerocallis 'Kindly Light' Hemerocallis 'Kindly Light'
(Daylily)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Kindly Light' has large, yellow-green, spider-like flowers but no fragrance.

Hemerocallis 'King's Genius' Hemerocallis 'King's Genius'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This daylily has large red flowers with a yellow center and yellow accents.

Hemerocallis 'Mini Pearl'

Hemerocallis 'Mini Pearl'


(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a lovely yellow-pink (some say apricot) daylily.

Hemerocallis 'Stella de Oro' Hemerocallis 'Stella de Oro'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This bright yellow flowered daylily has a long blooming period, producing ruffled flowers over four or five months. Each flower opens for one day. It is a vigorous grower that may be the most widely grown daylily.

Hemerocallis 'Strawberry Candy' Hemerocallis 'Strawberry Candy'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Strawberry Candy' has small, rose-pink flowers with yellow centers. They are semi-evergreen in some climates.

Hemerocallis 'Sydney Eddison' Hemerocallis 'Sydney Eddison'
(Daylily)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This daylily has large, pale creamy pink flowers.

Hemerocallis 'Yum Yum' Hemerocallis 'Yum Yum'
(Daylily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Yum Yum' has miniature red flowers.

no image available Hepatica acutiloba
(Liverwort, Sharp-leaved hepatica)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

An early bloomer, liverwort has tiny, cup-shaped, blue, pink, or white flowers in spring. Three-lobed, mottled, mid-green leaves appear after the blooms.

Heptacodium miconioides Heptacodium miconioides
(Seven-son flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The tiered branches of this fast-growing species are covered with white blossoms for over a month, starting in late summer. The flowers fade to reveal fuchsia calyxes that persist well into autumn. The pale, peeling bark can be exposed by pruning the lower branches of the interior. Although the form of the species is variable (single or multi-stemmed), it can usually be pruned into an elegant vase-shaped specimen, or maintained as a shrub.

Hesperaloe parviflora Hesperaloe parviflora
(Red yucca)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A clump-forming succulent, red yucca has arching, leathery, linear foliage rising to between 2 and 3 feet tall. Dark olive-green leaves with no thorns or spines are sparsely covered with fibrous strands along the margins. Deep coral pink flowers with golden yellow throats crowd the length of the stalks that reach three feet or more. Foliage has a reddish bronze hue during winter's chill for year-round interest.

Hesperis matronalis Hesperis matronalis
(Sweet rocket, Dame's violet, Wild phlox)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant is a biennial or short-lived perennial with leafy stems and 4- to 8-inch-long toothed, hairy leaves. Lilac or purple, sometimes white, flowers are borne from late spring to midsummer in racemes or panicles.