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Browse Plants

Narrowed By:Seasonal Interest: Fall+ Spread: 1 - 3 ft
Displaying 1 - 330 of 330 listings   1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17View All Sort By: Sort
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 frows to 2 feet tall and wide with ferny, finely-textured, green foliage. Flowers are produced in flat corymbs in early to late summer.

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.

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 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.

Adiantum pedatum ssp. aleuticum Adiantum pedatum ssp. aleuticum
(Northern maidenhair fern)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is an elegant, deciduous fern with medium green fronds on dark brown or black stalks with thick creeping rhizomes. It provides a distinct form in a woodland setting or shaded border.

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

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.

Agave parryi Agave parryi
(Mescal)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant has a dense rosette of fleshy blue-gray leaves and produces tall, cream-colored flowers tinged with red or pink in summer.

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.

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 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.

Aloe cameronii Aloe cameronii
(Red aloe)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Aloe is best known as a medicinal plant (Aloe vera, Zones 10-11), but there are many beautiful aloes as well. Most have amazing winter flowers, and some, have interesting foliage color. Red aloe  has color that varies from green to a deep, red wine hue, depending on sun and water. and, over time, will form beautiful red-purple mounds with orange flowers. It is easily propagated from cuttings. -Jeff Moore, Regional Picks: Southwest, Fine Gardening issue #120

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.

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.

Andropogon gerardii 'Pawnee' Andropogon gerardii 'Pawnee'
(Big bluestem, turkeyfoot)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Pawnee' has an upright habit and warm fall colors that persist into winter. This refined offbig bluestem has the bluish purple stems typical of the genus. In late summer, Purplish red flowers appear in groups of three or six, which look like a turkey foot—hence the nickname: "Turkey Foot Grass." The root system that can extend down more than 10 feet. Each year, a third of these roots die, opening up channels for water. -Scott Vogt, Native grasses, Fine Gardening issue #124

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 '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 'Königin Charlotte' Anemone × hybrida 'Königin Charlotte'
(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 with notched petals grows to 4 feet tall and blooms from September to October.

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

This beautiful, lavender-pink anemone reaches 32 to 40 inches tall. 'Kriemhilde' blooms from September to October.

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 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.

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.

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.

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.

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 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.

Asclepias tuberosa Asclepias tuberosa
(Butterfly weed)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Butterfly weed is a native perennial with flat-topped, orange or yellow flower clusters at the ends of its stems or in its leaf axils. From midsummer to autumn, it produces clusters of brightly colored flowers that attract insects, followed by fruit and showy seed. Plant in a border, meadow, butterfly garden, or wildflower garden.

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 'Wonder of Staffa' Aster × frikartii 'Wonder of Staffa'
('Wonder of Staffa' aster)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This repeat-blooming aster produces bright, 2-inch-wide, violet-blue flowers from mid-summer into fall. It grows to 3 feet tall and 1 to 2 feet wide and prefers full sun and average, well-drained soil.

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 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 ‘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.

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 '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

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.

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.

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.

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 '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.

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.

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.

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.

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.

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.

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 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.

Calluna vulgaris 'Spring Torch' Calluna vulgaris 'Spring Torch'
(Scotch heather, Ling)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Spring Torch' gets its name from the vibrant color of its new growth in spring. The mid-green leaves are tipped in shades of cream, orange, and red. Later in the summer, mauve-pink flower spikes cover the plant and last into the fall. As cold weather sets in, leaves acquire bronze or purple tones, adding further interest. This small, mounding evergreen shrub makes a good groundcover or rock garden plant. Bees love it. Different cultivars are beautiful woven together in the garden to form a colorful tapestry.

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 lactiflora Campanula lactiflora
(Milky bellflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This upright bellflower grows to 4 or 5 feet with rounded leaves and conical spires of bell-shaped flowers in shades of blue, violet, or white.

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.

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 ‘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.

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.

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 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.

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 '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.

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.

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.

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.

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 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.

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 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.

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.

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.

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.

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.

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. 

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 '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.

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.

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.

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.

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.

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 '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 '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.

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.

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. 

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 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.

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.

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

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

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.

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.

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 '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 fortunei 'Minimus' Euonymus fortunei 'Minimus'
(Dwarf wintercreeper)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Minimus' has smaller leaves than other plants of the species and a very low-growing, spreading habit. This evergreen shrub is best used as a groundcover, but it can climb as a vine if given support. It forms a dense mat of quarter-inch leaves. It may suffer winter burn in cold climates.

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.

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 '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.

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 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 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.

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. 

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.

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.

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.

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.

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.

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 × 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. 

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.

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

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 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.

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.

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.

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.

Heuchera 'Green Spice' Heuchera 'Green Spice'
(Coral bells)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This coral bells cultivar has silvery leaves with vivid purple veins and spires of white flowers in late spring and early summer. 'Green Spice' grows to less than a foot tall and a little wider; the wiry flowering stems rise two feet or so above the foliage. Leaves have an orangey hue in fall.

Heuchera micrantha var. diversifolia 'Palace Purple' Heuchera micrantha var. diversifolia 'Palace Purple'
(Coral flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Clump-forming perennial features a mound of maple, or ivy-like, long-petioled leaves (3-5" wide) which are an attractive deep purple above and beet red beneath. Foliage color may fade to a bronze green in hot summers. Tiny, pinkish white, bell-shaped flowers in open, airy panicles are borne on slender, wiry, dark red stems extending well above the mound of leaves typically to a height of 15-24" in late spring to early summer. Attracts hummingbirds to the garden! They look especially good used around the edge of a border. -Santa Rosa Gardens

Heuchera villosa 'Autumn Bride' Heuchera villosa 'Autumn Bride'
(Hairy alumroot, Maple leaf alumroot)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Large, fuzzy, gray-green leaves distinguish 'Autumn Bride' from other cultivars of Heuchera villosa. Attractive white flowers bloom in midsummer. This heuchera tolerates full sun but prefers partial shade, especially in the afternoon. -Jane Hutson, Regional Picks: Midwest, Fine Gardening issue# 127

Hibiscus 'Kopper King' Hibiscus 'Kopper King'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A hardy hibiscus, 'Kopper King' has leaves that are a coppery red on top and orange-red underneath. Large (10 to 12 inches across) ruffly white to pale pink flowers bloom from midsummer to mid-fall if you deadhead. 'Kopper King' dies back to the ground in autumn and is late to break dormancy in the spring. It should be interplanted with spring bulbs and overplanted with winter annuals; that way you'll get color year round without disturbing the hibiscus. -Pat McKernan, Regional Picks: Lower Plains, Fine Gardening issue #120

Hibiscus trionum Hibiscus trionum
(Flower-of-an-hour)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A seldom-seen annual or short-lived perennial, this easy-to-grow plant performs as the perfect filler in beds and containers. It forms a well-branched compact mound of deeply lobed, dark green leaves, which provide an interesting textural backdrop to its charming, hibiscus-type flowers. The flowers are truly stunning with their cream petals, purple-hued undersides, and deep burgundy centers. While each flower lasts only a single day, the plant blooms profusely all season and produces inflated seedpods. The flowers will not normally open on a cloudy day, but this is a small price to pay for such a gem of a plant.

Hosta ‘August Moon’ Hosta ‘August Moon’
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This large and vigorous mounding hosta reaches 20 to 24 inches tall and 36 to 42 inches wide. Heart-shaped, cupped, puckered, pale green leaves provide interesting and attractive texture. Bell-shaped, grayish white flowers are borne on 28-inch-long scapes from mid-July through early August.

Hosta 'Fortunei Albo-marginata' Hosta 'Fortunei Albo-marginata'
(Hosta)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Bold, large, shield-shaped leaves with a deep green center and creamy-white margins turn white with age. Funnel-shaped mauve flowers borne on leafy scapes 32 inches long appear in midsummer.

Hosta 'June' Hosta 'June'
(Plantain lily)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'June' hosta has bluish leaves with irregularly shaped creamy gold centers. Pale lavender flowers bloom in late summer on 20-inch spikes. This medium-sized plant is a standout in shade or woodland gardens. It was the American Hosta Growers Association "Hosta of the Year 2001".

Hosta 'Lakeside Shore Master' Hosta 'Lakeside Shore Master'
('Lakeside Shore Master' hosta)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

With hefty, chartreuse-flared leaves, ‘Lakeside Shore Master’ hosta commands attention. Performing best in shade, it will tolerate some sun in our cool New England climate. Please don’t let the name fool you, however, into giving it a soggy spot; wet feet turn hostas into mush. This cultivar also sports thick leaves, which are fairly slug resistant. -Justin Nichols, Fine Gardening 147, page 70

Hosta 'Sun Power' Hosta 'Sun Power'
(Hosta)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Sun Power' is a clump-forming perennial with oval to heart-shaped, yellowish green leaves below funnel-shaped, pale-lavender to white flowers in midsummer.

Hosta kikutii 'Hillbilly Blues' Hosta kikutii 'Hillbilly Blues'
(Japanese rock hosta)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A clump-forming perennial with flat-spreading, blue-colored leaves, Japanese rock hosta bears funnel-shaped white flowers, sometimes flushed with purple, on arching, leafy scapes 24 inches long.

Hydrangea macrophylla 'Pia' Hydrangea macrophylla 'Pia'
(Bigleaf hydrangea, Florist's hydrangea)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Pia' is a dwarf Hortensia (or "mophead"), with globe-shaped flower heads made up of deep rose, 4-inch-wide flowers. 

Impatiens balsamina and cvs. Impatiens balsamina and cvs.
(Rose-balsam, Touch-me-not)
(1 user review)

This plant has a sparsely branched form and narrow lance-shaped, pale green leaves. Cup-shaped hooded flowers 1-2 inches across, either singly or in clusters, are followed by explosive seed capsules. A variety of colors are available, including rose, lilac, and creamy yellow.

Itea virginica 'Sprich' Itea virginica 'Sprich'
(Little Henry® Virginia sweetspire)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Like the popular 'Henry's Garnet' Virginia sweetspire, Little Henry® has mildly fragrant white blooms in summer and red to orange leaf color in fall, but grows to just 2 to 3 feet tall and 3 feet wide. Use it in massed plantings, mixed borders, and containers. -Allan Armitage, Plants to know and grow, Fine Gardening issue #121

Juniperus squamata 'Blue Star' Juniperus squamata 'Blue Star'
(Singleseed juniper)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Blue Star' jumiper is a slow-growing, compact, evergreen shrub with a mounding shape. Its silver blue foliage is attractive in all seasons, and its blue, berry-like, female cones each contain one seed, hence its common name.

no image available Kalimeris pinnatifida
(Double Japanese aster)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This upright bushy perennial has softly hairy, mid-green lower leaves to 3 inches long and lance-shaped upper leaves to 1 inch long. White, double flowers, resembling chrysanthemums, bloom almost constantly from spring to fall. Kalimeris is closely related to Boltonia.

Kalimeris yomena Kalimeris yomena
(Japanese aster)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Beautiful variegation brightens the green and grey mottled foliage. A wide creamy-golden margin blends to the edge of the cut-leaf foliage. Its spreading branches mingle softly with its garden neighbors. Blooming in early fall, 12-  to 15-inch stems produce light lavender aster-like flowers with a yellow center.

Kirengeshoma palmata Kirengeshoma palmata
(Yellow wax-bells)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This hardy, clump-forming perennial bears pendulous, shuttlecock-shaped soft-yellow blossoms in late August and early September. The plant has attractive, glossy, 4- to 8-inch-long, maple-leaf-shaped leaves.

Lantana camara 'Pink Caprice' Lantana camara 'Pink Caprice'
('Pink Caprice' lantana)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The pale pink and yellow flowers of this evergreen perennial attract butterflies from late spring to frost. Lantana camara is mostly grown as a summer annual, but can be overwintered in a cool, dark location.

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

This late-blooming perennial is a go-to for shots of crisp white and happy yellow in the fall garden.

Leucanthemum × superbum 'Becky' Leucanthemum × superbum 'Becky'
('Becky' shasta daisy)
(8 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This Shasta daisy cultivar has especially large white flowers with yellow centers held on 3- to 4-foot-tall, strong stems that don't need staking. It also blooms later than most of the other cultivars. It originated in a Southern garden, but it is very adaptable to other climates. The masses of crisp, bright blooms are a mainstay of the summer border.

Liatris aspera Liatris aspera
(Rough gayfeather, Rough blazing star)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tuberous perennial has dense clusters of linear, rough leaves borne in basal tufts to 16 inches long. Dense spikes, up to 18 inches long, of button-like lavender-purple flowerheads are borne in late summer and early autumn. Blooms open from the top of the inflorescences downward.

Liatris spicata 'Kobold' Liatris spicata 'Kobold'
(Blazing star, Gayfeather)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar of a U.S. prairie plant offers the garden spikes of purple, fuzzy-looking flowers that open from the top down on plants up to 2 feet tall and 18 inches wide. The show starts in late summer and attracts butterflies and bees. Grow it in a moist meadow or border. The flowers are also beautiful in a vase.

Ligularia dentata 'Britt Marie Crawford' Ligularia dentata 'Britt Marie Crawford'
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In early spring, fleshy stems unfurl and are topped by rounded burgundy leaves. By June, this plant looks splendid, with upturned leaves and their rich purple undersides. 'Britt Marie Crawford' may wilt in the hot noonday sun, but soft shade soon revives it. At the start of summer, right golden daisy-like flowers bloom, contrasting boldly with the foliage. -Matt Griswold, Regional Picks: Northeast, Fine Gardening issue #127

Ligularia tussilaginea 'Gigantea' Ligularia tussilaginea 'Gigantea'
(Giant leopard plant)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This evergreen foliage plant has large, rounded, leathery leaves and daisy-like yellow flowers. It looks great in the border or in containers.

no image available Liriope muscari 'Silver Dragon'
(Lilyturf)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Silver Dragon' lilyturf features thick, tufted evergreen clumps of linear silver and white leaves with a shimmering silver stripe running down the arching blades. Dense spikes of violet-mauve flowers are borne on purple-green stems in autumn, maturing to black berries.

Liriope muscari ‘Variegata’ Liriope muscari ‘Variegata’
(Lilyturf)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Lilyturf is a great choice for problem sites, such as the dry shade under a tree canopy. 'Variegata' is a vibrant, grass-like plant with green foliage, striped with cream. Leaves are wider and more blunt at their tip than grasses, and in warmer climates, the foliage persists through the winter. Clumps run from 1 to 1-1/2 feet tall and half again as wide. Spikes of small blue-violet flowers appear in late September and are followed by dark purple berries. -Lou Anella, Regional Picks: Southern Plains, Fine Gardening issue #127

no image available Lygeum spartium
(Esparto grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Silver-blue, rushlike foliage is graced by one of the most distinctive flowers of all grasses: the inflorescence looks like little origami birds. 

Lysimachia clethroides Lysimachia clethroides
(Gooseneck loosestrife)
(4 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This vigorous grower has attractive, smooth, narrowly oval pointed leaves are mid-green above, pale green beneath. Tiny saucer-shaped white blossoms are produced in dense, tapered terminal spikes, 4 to 8 inches long, that curve gracefully over and down, from July to September. Leaves turn to rich gold in autumn.

Mahonia nervosa Mahonia nervosa
(Longleaf Oregon grape)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A 2-foot-high evergreen shrub native to the woods and woodland edges of the Pacific Northwest, mahonia gives a shady area three seasons of interest. Erect racemes covered with clear yellow flowers rise from the plant's leaf axils or from the main stem tip in spring. In contrast to these upright blooms are long, elegant, compound leaves made up of leaflets with spiny edges. In fall, some leaves turn a lovely wine-red. During summer, clusters of berries mature to dark blue with a powdery whitish coating.

Melinus nerviglumis Melinus nerviglumis
(Ruby grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This clumping, blue-green foliaged grass has amethyst-pink flowers that create fluffy, 8- to 12-inch-long plumes throughout the summer. Eventually, the flowers mature to the color of root beer foam. It is heat and drought tolerant, and it makes a fine annual in colder climates. Excellent drainage will help it thrive in humid summer climates. Not invasive from seed, ruby grass works great grown singly in pots or in groups.

Molinia caerulea ssp. arundinacea 'Sky Racer' Molinia caerulea ssp. arundinacea 'Sky Racer'
(Tall purple moor grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Skyracer' grows to about 3 feet wide and 2 to 3 feet wide, and in late summer to early fall, sends up delicate panicles to a height of 6 or 7 feet. This finely-textured ornamental grass is great for areas where you need height but don't have space for a wider, heavier plant. It works well in a sunny border but make sure you site it so you can see it closeup. Expect outstanding yellow color in fall.

Muhlenbergia capillaris Muhlenbergia capillaris
(Muhly grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In autumn, this unique specimen creates a spectacular, billowy inflorescence of massed, vibrant pink, airy flowers on 4-foot stems. It is noted for its tolerance to poorly drained soil. It is possibly hardy to Zone 6 with protection.

Muhlenbergia lindheimeri Muhlenbergia lindheimeri
(Lindheimer's muhly)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This beautiful warm-season grass produces attractive, pale purplish-gray plumes in autumn and goes dormant in the cold season. It forms a neat, upright clump with fine blue-gray foliage.

Nepeta × faassenii 'Walker's Low' Nepeta × faassenii 'Walker's Low'
(Catmint)
(11 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This mound of lavender-blue flowers and aromatic, grayish green leaves up to 2 feet tall and 3 feet wide is great as edging or in a border, herb, or rock garden. It is an easy to grow, prolific bloomer that seems to be deer resistant. It blooms the whole summer and tolerates some shade. It also looks great with roses or on walls.

Nepeta × faassenii ‘Dropmore’ Nepeta × faassenii ‘Dropmore’
(Catmint)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar is a clump-forming perennial with toothed gray-green leaves and larger flowers than the hybrid. It flowers profusely and long, especially if sheared. The blue-purple flowers are small but abundant, and the foliage is aromatic.

no image available Paeonia obovata var. alba
(Japanese forest peony)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant is a beautiful addition to the garden from early spring until autumn. Red shoots with a crystalline dusting emerge in early April, followed by 5-inch-long, egg-shaped leaves that mature to a dark, reddish green. Each 18-inch stem bears a 2-inch-wide, chalice-like, single pure-white flower with yellow anthers and purple filaments. Mature seedpods open to reveal metallic-blue pea-sized fertile seeds and holly-berry red unfertilized seeds.

Panicum virgatum 'Prairie Fire' Panicum virgatum 'Prairie Fire'
(‘Prairie Fire’ red switchgrass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Prairie Fire' is a distinctly red form of switchgrass. Blue-green spring foliage turns shades of deep red by early summer and butter yellow in late fall. The grass persists into winter. 'Prairie Fire' has a fibrous root system that grows to more than 10 feet deep, making it drought tolerant. -Scott Vogt, Native grasses, Fine Gardening issue #124

Panicum virgatum 'Ruby Ribbons' Panicum virgatum 'Ruby Ribbons'
(Switch Grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Panicum Ruby Ribbons’ soft blue-green foliage emerges in the spring on upright, clumping plants. The foliage takes on a wine-red color in early summer, which intensifies as the season progresses. Flower heads appear in late summer, followed by ornamental seed heads, which, if left uncut, provide long-lasting winter interest.

Panicum virgatum 'Shenandoah' Panicum virgatum 'Shenandoah'
('Shenandoah' red switchgrass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Shenandoah' is truly a plant for all seasons. In early summer, its leaf blades are tipped in red, and by autumn, the entire leaf is a rich burgundy color, topped by pink plumes. In winter, the leaf color fades to beige; the blades persist and offer cover to birds. 'Shenandoah' is a compact selection of an American native prairie grass. -Chris Kelley, Regional Picks: Midwest, Fine Gardening issue #120

no image available Panicum virgatum ‘Heavy Metal’
(Switch grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This rhizomatous perennial grass has a narrowly upright, clumping form. Mid-green stems bear stiff, erect, blue-gray leaves to 24 inches long. Foliage turns yellow in autumn. Weeping panicles of tiny purple-green spikes appear in early autumn.

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

From a basal mound of toothed leaves (similar to scabiosa's foliage) rise 4- to 6-foot stems of tiny chrome-yellow flowers.

Pelargonium 'Crystal Palace Gem' Pelargonium 'Crystal Palace Gem'
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'Crystal Palace Gem' was first introduced in 1869 and has been a star in the garden ever since. It was named for Joseph Paxton's elaborate glass house designed in 1851 for London's Great Exhibition in Hyde Park. Like its namesake, the plant is showy, with its round chartreuse leaves with a midgreen center and its salmon-red flowers. 'Crystal Palace Gem' looks good from spring until frost. -Marty Wingate, Plants to know and grow, Fine Gardening issue #120

no image available Pelargonium sidoides
(Kalwerbossie geranium , Silverleaf geranium)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This exemplary species has felted, gray, crinkled leaves. Over a long period, it exhibits sprays of butterfly-shaped, rich wine-red flowers, which contrast dramatically with the foliage. Its small stature makes it a perfect candidate for a container or a walkway edge. It has been used medicinally for the treatment of various infections, including bronchitis. It is a native of Africa.

Pelargonium tomentosum Pelargonium tomentosum
(Mint-scented geranium, Peppermint geranium)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The velvety leaves of this choice species are pale green with long, silky hairs. The angora-like feel of the foliage is matched by its heavenly aroma of fresh mint. It bears clusters of dainty white blossoms in spring, but remains an exceptional foliage plant throughout the year.

Pennisetum 'Fireworks' Pennisetum 'Fireworks'
(Variegated purple fountain grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Pennisetum 'Fireworks' is the first variegated purple fountain grass. The midvein, of the typical burgundy color, is flanked by hot pink margins.

Information provided by Santa Rosa Gardens.

 

Pennisetum orientale Pennisetum orientale
(Oriental fountain grass, Tall tails)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Pink, bottle-brush flowers rise well above arching clumps of graceful foliage in summer. This grass is beautiful in a mixed border, rock garden, or massed at waterside. It blooms in June with pink plumes.

Pennisetum setaceum 'Rubrum' Pennisetum setaceum 'Rubrum'
(Purple fountain grass, Red fountain grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tropical annual produces mounds of narrow burgundy-red foliage and purple plumes to 1 foot long. It is invaluable for containers and stunning, annual foliage color in a border. It rarely sets seed.

no image available Pennisetum spathiolatum
(Slender veldt grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Native to South Africa, this non-invasive evergreen species produces showy pink flowers in spring, which are held 2 to 3 feet above the foliage on stiff, wiry stalks.

Penstemon 'Garnet' Penstemon 'Garnet'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant is a bushy, vigorous perennial with smooth, narrow, dark green leaves and small, tubular, deep wine-red flowers borne in erect spikes, from early summer to late autumn.

no image available Penstemon albertinus
(Alberta beardtongue)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Deep blue, delicate spires to 16 inches tall appear late spring and early summer above thick, sturdy leaves.

Penstemon barbatus Penstemon barbatus
(Beardlip penstemon)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This erect perennial has basal rosettes and stems bearing lance-shaped mid-green leaves. The plant bears long panicles of scarlet or yellow flowers from early summer to early autumn.

no image available Penstemon clutei
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This upright perennial sports hanging, tubular bright-pink flowers to 1 inch across above serrated blue-green leaves. It blooms summer to fall.

Pentas lanceolata 'New Look Red' Pentas lanceolata 'New Look Red'
(Egyptian star cluster, Star cluster)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Red star-shaped flowers with small white centers bloom atop erect stems from spring to autumn. This evergreen perennial or subshrub is often grown as a summer annual. It generally stays under 2 feet tall in the garden, but the species can reach over 6 feet tall in the wild. Grow in a bed or border, or in containers.

Perovskia atriplicifolia Perovskia atriplicifolia
(Russian sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The light, lavender-blue flowers, which attract butterflies to the garden, bloom in July, and often last throughout September. Russian sage is a particularly striking plant when grown along with white, yellow, or orange flowered perennials. Tones down bright yellow in the garden as well. Its silver-gray, deeply cut foliage and stiff stems are striking in the winter. -Santa Rosa Gardens

Phlomis russeliana Phlomis russeliana
(Sticky Jerusalem sage)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

An unusual looking perennial from Turkey and Syria with hooded, pale yellow flowers encircling hairy stems. The flowers somewhat resemble Monarda. Leaves are aromatic and slightly fuzzy. P. russeliana reaches 3 feet tall and nearly as wide. Grow en masse in a border or near a warm wall.

Phlox paniculata Phlox paniculata
(Garden phlox, Perennial phlox)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This sturdy, upright perennial reaches 2 to 4 feet tall. In July and August, and through September with deadheading, it bears flowers in shades of white, coral, pink, red, lavender, and violet, depending on the cultivar. Some have a lighter or darker eye, and others have variegated leaves. Many of the cultivars are fragrant; scent is most noticeable at night.

Phlox paniculata 'David' Phlox paniculata 'David'
(Border phlox, Summer phlox)
(26 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This pure white phlox is valuable in the garden because of its abundant, fragrant flowers, its sturdy growth habit, and its resistance to powdery mildew. Growing to about 3 ½ feet tall and 2 to 3 feet wide, it blooms from early summer to early fall. It needs a consistently moist soil. Use it in a border or cottage garden. It will glow at dusk.

Physostegia virginiana Physostegia virginiana
(Obedient plant, False dragonhead)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Obedient plant is a clump-forming native perennial that grows aggressively. From midsummer to early fall, spikes of purple or pink (and sometimes white) flowers rise above sharply toothed leaves to four feet high.

Plectranthus ‘Mona Lavender’ Plectranthus ‘Mona Lavender’
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Plectranthus cultivars are popular foliage plants, but some gardeners grow them for their blooms, and one of the best bloomers is 'Mona Lavender'. This cultivar has abundant lavender-purple flowers that complement the dark green leaves (with purple undersides and stems). These plants thrive in light to deep shade. -Tom Nelson, Regional Picks: Northern California, Fine Gardening issue #127 

Plumbago auriculata Plumbago auriculata
(Cape leadwort, Cape plumbago)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This evergreen shrub, native to South Africa, has long, skinny stems and phlox-like pale blue flowers. It can be used as a shrub, climber, pot plant, or groundcover.

Polemonium caeruleum 'Brise d'Anjou' Polemonium caeruleum 'Brise d'Anjou'
(Variegated Jacob’s ladder, Greek valerian)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This dramatic cultivar has bright green leaves that are richly edged with cream. It bears lavender-blue blossoms in spring, and grows from 1.5 to 2 feet tall.

no image available Polemonium reptans 'Stairway to Heaven'
(Greek valerian, Jacob’s ladder)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This variegated cultivar offers white-edged leaves with pink tints on a compact plant to 1.5 feet tall. It bears light lavender-blue bell-shaped blossoms in spring.

Polygonatum biflorum Polygonatum biflorum
(Small Solomon's seal, Solomon's seal)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

From late spring into summer, this species bears tubular greenish-white flowers that dangle underneath the arching stems. The foliage is smooth; in autumn it turns to clear yellow, contrasting with the blue-black berries this plant produces. Its height varies wildly from 1.5 to 6 feet tall.

Polygonatum odoratum Polygonatum odoratum
(Fragrant Solomon’s seal, Solomon’s seal)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

From late spring to early summer, this species bears pendent, green-tipped white flowers along arching stems. These mature into spherical black fruit in autumn, when the foliage turns yellow.

Polygonatum odoratum 'Variegatum' Polygonatum odoratum 'Variegatum'
(Variegated fragrant Solomon's seal)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Gracefully arching 2 to 3-foot tall burgundy stems support narrow leaves streaked in pure white. From late spring to early summer, this species bears white flowers that mature into spherical black fruit in autumn, when the foliage turns a golden yellow. Variegated Solomon's seal is a fine choice for a shady bed. -Matt Griswold, Regional Picks: Northeast, Fine Gardening issue #27

Ratibida columnifera Ratibida columnifera
(Mexican hat, Prairie coneflower, Long-head coneflower)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This perennial coneflower, sometimes grown as an annual, has a long season of flowers on thin, branching stems. The flowers resemble small hats, with yellow reflexed ray florets and large greenish-brown columnar centers.

Rosa 'Carefree Beauty' Rosa 'Carefree Beauty'
(Rose)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This vigorous, upright shrub rose sports smooth, olive-green leaves and clusters of cup-shaped, semi-double, fragrant, bubble-gum-pink flowers from spring to fall. Flowers are followed by round hips in shades of orange and red.

Rosa 'Charles Albanel' Rosa 'Charles Albanel'
(Hedgehog rose, Ramanas rose, Japanese rose, Sea tomato)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This spreading rose grows to only 2 feet tall, making it an ideal groundcover for a steep bank or roadside. It produces fragrant, double, deep-pink blossoms from spring to fall.  

Rosa ‘China Doll’ Rosa ‘China Doll’
(Polyantha rose, Sweetheart rose)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This dwarf rose grows to only 18 inches tall, and covers itself all season long with large clusters of lightly scented vibrant pink flowers.

Rosa 'Fair Bianca' Rosa 'Fair Bianca'
(English shrub rose)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This David Austin rose grows to only 2.5 feet tall. It produces beautifully cupped, double white flowers with petals densely arranged in the center. It is strongly scented.

Rosa var. NOA97400A 'Flower Carpet® Amber' Rosa var. NOA97400A 'Flower Carpet® Amber'
(Flower Carpet® Amber)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Each bush is covered in a mass explosion of amber blooms.  One of the new Next Generation Flower Carpet roses with improved heat and humidity tolerance and disease resistance.

Rosa var. NOA83100B 'Flower Carpet® Scarlet' Rosa var. NOA83100B 'Flower Carpet® Scarlet'
(Flower Carpet® Scarlet)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Each bush is covered in a masses of scarlet red blooms from late spring thru fall. One of the new Next Generation Flower Carpet roses with improved heat and humidity tolerance and disease resistance.

Rosa 'Gertrude Jekyll' Rosa 'Gertrude Jekyll'
(English shrub rose)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This rose with an influential namesake has beautifully cupped double blossoms of rich pink. It produces arching stems to 5 feet or more and 3 feet wide, making it an ideal candidate for training up a low structure.

Rosa 'Graham Thomas' Rosa 'Graham Thomas'
(English shrub rose)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This notable rose has quartered-rosette, double blossoms of rich yellow. It produces arching stems to 5 feet or more, making it an ideal candidate for training up a low structure.

no image available Rosa 'Secret'
(Hybrid tea rose, Large-flowered rose)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This intensely fragrant rose has high-centered, double blossoms of creamy pink edged with deeper pink. It blooms in summer and into fall, and grows to 5 feet high and 2 feet wide. 

Rosa 'Souvenir de la Malmaison' Rosa 'Souvenir de la Malmaison'
(Bourbon rose)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This small rose is ideal for the front of the border because its size rarely exceeds 2 feet in height. It produces pale lavender-pink to white, quartered-rosette blossoms with a spicy fragrance. It blooms from spring to autumn. 

no image available Rosa 'St. Patrick'
(Hybrid tea rose, Large-flowered rose)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This double-flowered rose has yellow blossoms with green outer petals. The flowers are perfectly formed and are excellent for cutting. It blooms in summer and into fall, and grows to 5 feet high and 3 feet wide. 

Rosa 'The Fairy' Rosa 'The Fairy'
(Polyantha rose, Sweetheart rose)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This well-loved rose blooms nonstop from June until frost, with double, rosette-shaped blossoms of light pink. It grows 2 to 3 feet high and wide.

Rosa var. NOA168098F 'Flower Carpet® Pink Supreme' Rosa var. NOA168098F 'Flower Carpet® Pink Supreme'
(Flower Carpet® Pink Supreme)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Each bush is covered in a mass explosion of vivid pink blooms all summer long.  One of the new Next Generation Flower Carpet roses with improved heat and humidity tolerance and disease resistance.

Rudbeckia fulgida var. sullivantii 'Goldsturm' Rudbeckia fulgida var. sullivantii 'Goldsturm'
(Orange Coneflower, Black-eyed Susan)
(12 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Large flowers consisting of brassy orange-yellow rays surrounding brown cones are what make this plant so popular. It blooms for 7 or 8 weeks beginning in midsummer. The flowers top 18- to 30-inch-tall plants that will readily self sow in cultivated soils. 

Rudbeckia hirta Rudbeckia hirta
(Black-eyed Susan, Gloriosa daisy, Coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This biennial or short-lived perennial has given rise to numerous cultivars which are often grown as annuals. From summer into early autumn, it bears daisy-like blossoms (to 3 inches across) with light or deep yellow rays and brownish-purple centers. The flowers are a staple in late summer bouquets.

Rudbeckia maxima Rudbeckia maxima
(Giant coneflower, Black-eyed Susan)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This choice species makes a strong vertical statement with its large, smooth, sea-green leaves and towering stems to 6 feet tall. It bears short, yellow ray florets with giant, upright cones at the center. It prefers average soil with good drainage, and is excellent in native or wild plantings.

Rudbeckia subtomentosa Rudbeckia subtomentosa
(Sweet coneflower)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This dignified U.S. native species has downy leaves and bears clusters of luminous clear-yellow flowers with reddish-brown center cones. It blooms for over a month starting in mid- to late-summer.

Rudbeckia subtomentosa 'Henry Eilers' Rudbeckia subtomentosa 'Henry Eilers'
('Henry Eilers' sweet coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The unique, finely quilled, 2-inch-wide flowers are what make 'Henry Eilers' stand out from the rest of the coneflowers. The petals sit separate from one another, forming a brilliant, golden yellow starburst around a dark brownish purple cone. The blooms grow on strong, upright, 4- to 5-foot-tall stems in late summer, and are produced in such abundance that you can cut some for bouquets and you'll never even notice they are missing from the garden. The stems are covered with a soft, hairy down, while the leaves have a pleasing vanilla-and-anise scent.

no image available Rudbeckia triloba
(Brown-eyed Susan, Coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This biennial makes a superb, self-sown companion in a mixed border or wild garden. It reaches up to 5 feet tall and exhibits a long-lasting, airy spray of small, daisy-like blossoms in yellow with purple-black centers. The flowers are beautiful in late summer bouquets. 

Ruellia brittoniana 'Purple Showers' Ruellia brittoniana 'Purple Showers'
(Mexican petunia, Common ruellia, Wild petunia)
(7 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This three-foot-tall evergreen shrub bears many tubular, blue or purple, petunia-like flowers on dark stems over a long period. Each flower lasts for just one day. It is a fast grower that may self-seed aggressively. Use in a border, container, or at waterside. Can be grown as an annual in cooler areas.

Ruellia elegans Ruellia elegans
(Thai ruellia, Brazilian petunia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species has open-faced coral-red blossoms from late spring until fall. 

Salvia 'Indigo Spires' Salvia 'Indigo Spires'
('Indigo Spires' sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Indigo Spires' sage is a vigorous hybrid prized for its 12- to 15-inch-long, twisting spikes of dark violet flowers. It is a non-stop bloomer from early summer through fall. Blooming can be further encouraged by pinching stem tips early in the growing season and deadheading the spikes once they fade. 'Indigo Spires' quickly grows to 4 feet high, and can be grown as an annual where not hardy.  

Salvia argentea Salvia argentea
(Silver sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This biennial or short-lived perennial is grown for its massive, downy-silver rosettes of foliage. In its second year, it spawns plumes of white or pinkish flowers with gray calyces in mid- to late summer. The plant has a spiky form, 3 feet tall by 2 feet wide. Locate it where the rosettes can be easily seen.

Salvia azurea Salvia azurea
(Pitcher sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Pitcher sage is a wonderful wildflower found growing over a wide area of the Great Plains. Blooming in late summer and early fall, this perennial is admired for its sky blue flowers and remarkable xeric qualities. This salvia grows to 30 to 36 inches in height, but may be pinched back for bushier growth.

Salvia canariensis Salvia canariensis
(Canary Island sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This short-lived, tender perennial shrub native to the Canary Islands off the African coast sends up 6-foot white-furred stems cloaked with long, felted, arrow-shaped leaves and topped, summer to frost, with plumes of purplish violet flowers clasped by red-tipped calyxes. It grows up to 4 feet wide.

Salvia chamaedryoides Salvia chamaedryoides
(Germander sage, Mexican blue sage)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This choice species boasts narrow, downy sage-green leaves and true sky-blue blossoms from summer to fall. It has woody stems and forms a beautiful specimen 12 inches tall by 18 inches wide.

Salvia discolor Salvia discolor
(Andean silver-leaf sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tender perennial from Peru is highly unusual for its dramatic, purple-black flowers and pistachio-green calyces. The flowers appear from late summer to early fall. The drama is heighted by its contrasting silvery leaves and stems, which are densely cloaked in woolly, white hairs. Plants grow to about 18 inches tall and 12 inches wide. This specimen looks great tumbling over the edge of a container.

Salvia greggii Salvia greggii
(Autumn sage)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native of Texas and Mexico has a woody base and can form a dwarf, evergreen shrub, 1 foot tall by 1 foot wide. It has small, leathery leaves and bears bright flowers in shades of pink, purple, or yellow from early summer to frost.

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

This perennial produces long spires of large, deep blue flowers from mid-summer to frost. It forms a tall bush 6 feet tall by 2 feet wide that is great for the back of the border. It is drought tolerant because of its unusual, moisture-conserving rhizomes.

Salvia leucantha Salvia leucantha
(Mexican bush sage)
(8 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This downy, bushy, evergreen subshrub produces white or purple flowers clasped by soft purple calyces from late summer to frost. It grows 3 feet tall by 3 feet wide, and is great for the border. Salvias are some of the showiest plants for containers, annual borders, and mixed borders. Butterflies and hummingbirds love them. 

no image available Salvia nemorosa
(Sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This drought-tolerant perennial produces flower spikes in shades of violet, purple, or white to pink, with purple bracts. It blooms from early summer to autumn; reblooming is most reliable if spent flowers are promptly deadheaded. It has wrinkled leaves and forms an erect clump 3 feet tall by 2 feet wide. This species is most noted for its many S. sylvestris hybrids.

Salvia officinalis 'Icterina' Salvia officinalis 'Icterina'
(Golden variegated sage, Common sage, Culinary sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cooks and gardeners alike are indebted to this evergreen perennial for the unique, pungent flavor and aroma that its gray-green leaves produce. This charming cultivar has green leaves with irregular yellow margins. It forms a 1.5- to 2-foot-tall and wide bush with woody stems that may be trimmed back to newly emerging growth or strong stems in spring. In early to mid-summer, it occasionally sends up lavender-purple flower spikes; it has both ornamental and culinary qualities in an herb garden. It tolerates alkaline soils, but not wet winter conditions.

Salvia officinalis 'Purpurascens' Salvia officinalis 'Purpurascens'
(Common sage, Culinary sage, Purple sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cooks and gardeners alike are indebted to this evergreen perennial for the unique, pungent flavor and aroma that its gray-green leaves produce. This cultivar has leaves suffused with steely-gray purple. It forms a 1.5-foot-tall and wide bush with woody stems that may be trimmed back to newly emerging growth or strong stems in spring. In early to mid-summer, it sends up lavender-purple flower spikes; it has both ornamental and culinary qualities in an herb garden. It tolerates alkaline soils, but cannot survive wet winter conditions.

Salvia officinalis 'Tricolor' Salvia officinalis 'Tricolor'
(Common sage, Culinary sage, Purple sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cooks and gardeners alike are indebted to this evergreen perennial for the unique, pungent flavor and aroma that its gray-green leaves produce. This cultivar has ornamental value, too—green leaves with white margins which are suffused with pink or purple. It forms a 1- to 1.5-foot-tall and wide bush with woody stems that may be trimmed back to newly emerging growth or strong stems in spring. In early to mid-summer, it sends up lavender-purple flower spikes; it has both ornamental and culinary qualities in an herb garden. It is tolerant of alkaline soils, but cannot survive wet winter conditions.

Salvia reptans Salvia reptans
(West Texas cobalt sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

West Texas cobalt sage is a marvelously distinct species that can be enjoyed by gardeners farther north, as long as they purchase the west Texas form, which is quite cold-hardy. This salvia has rigid stems with narrow, pungent leaves and resembles a bright green, upright grass for much of the growing season. In early fall, cobalt blue flowers burst open almost overnight and are a big draw for hummingbirds. Thanks to its deep roots, this wildflower is extremely xeric. West Texas cobalt sage grows to 4 feet tall.

Salvia uliginosa Salvia uliginosa
(Bog sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This moisture-loving perennial produces clear blue flowers with white highlights in late summer to mid-autumn. It forms an airy clump to 6 feet tall by 3 feet wide, and is great for the back of a border. It is tolerant of heavy soils.

no image available Sanvitalia procumbens
(Creeping zinnia)
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Virtually covered in yellow, daisy-type flowers throughout summer, creeping zinnia makes a cheerful addition to any garden. Plants are mat-forming with bright green foliage. Easy to grow and tolerant of heat and drought, creeping zinnia is a generous bloomer that doesn’t need deadheading. It makes a wonderful ground cover and looks great planted among rocks or along pathways. It’s an excellent filler and spiller for containers, and it combines nicely with just about any summer-blooming plant

Scabiosa ‘Butterfly Blue' Scabiosa ‘Butterfly Blue'
(Pincushion flower)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This Scabiosa cultivar is a compact perennial with gray-green leaves and a long bloom period featuring pretty lavender-blue flowers that look like pincushions surrounded by frilly petals. It's nice when used as edging or in large groups in borders or rock gardens.

Schizachyrium scoparium Schizachyrium scoparium
(Little bluestem, Prairie beard grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Little bluestem is a tidy, finely textured clumping grass with a blue-green summer color. Its silvery seed heads rise to a height of nearly 2 feet in late summer and are at their best when backlit in the morning or afternoon sun. In fall, the grass turns a rosy rust color that lasts all winter.

Sedum 'Postman's Pride' Sedum 'Postman's Pride'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Postman's Pride' sedum is a wonderful dark-foliaged plant for sunny, dry locations. It has a semi-upright habit and produces masses of red to purple flowers from late summer through fall. The flowers attract honeybees and butterflies. Like other sedums, 'Postman's Pride' is useful in rock and xeriscape gardens because, once established, it thrives without irrigation except during severe droughts. Curious about the cultivar name? This plant was discovered by a Belgian postal carrier in his garden. -Ron Smith, Regional Picks: Upper Plains, Fine Gardening issue #120

Sedum ‘Autumn Joy’ Sedum ‘Autumn Joy’
(Stonecrop)
(13 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant is as dependable and adaptable as they come. Its flowers bloom from August into November; they open pink and mature to a copper befitting of autumn. It is 2 feet tall and wide, with succulent stems and leaves. 'Autumn Joy' looks great with ornamental grasses.  

Sedum ‘Ruby Glow’ Sedum ‘Ruby Glow’
(Stonecrop)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In summer to late summer, this low-growing Sedum has rosy-red flowers atop small, fleshy blue-green leaves with ruddy highlights. Plants grow 8-12 inches tall and 18 inches wide.

Sedum rupestre 'Angelina' Sedum rupestre 'Angelina'
(Stone orpine)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This vigorous, mat-forming, evergreen species has electric golden-yellow foliage that holds its color through the heat of summer. The foliage tips sometimes develop an orangey hue. In June and July, 'Angelina' has terminal clusters of star-shaped, vibrant yellow flowers. The drooping buds face upward when they open and the plant can grow to 6 inches tall and 12 inches wide. It is superlative as a groundcover, spilling over rock walls, and in containers. It also makes an excellent accent for plants with dark foliage.

Sedum spectabile Sedum spectabile
(Showy stonecrop, Everlasting)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

An upright species to 18 inches tall and wide, this plant bears pink flowers in August that persist into fall. Thick, almost succulent leaves are bluish green. S. spectabile was crossed with S. telephium to create the very popular 'Autumn Joy.'

Sedum spurium 'Fuldaglut' Sedum spurium 'Fuldaglut'
(Two-row stonecrop)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This mat-forming species forms a carpet of rosy-red flowers in late July and August, contrasting against green leaves with bronzy-maroon highlights.

Sedum telephium 'Matrona' Sedum telephium 'Matrona'
(Stonecrop)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This choice cultivar boasts domed clusters of starry, pale-pink flowers with dark-tipped stamens. The foliage is medium blue-green, overlaid by tints of burgundy and stormy gray. The rich red stems reach up to 3 feet tall.

Sesleria autumnalis Sesleria autumnalis
(Autumn moor grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cool-season grass begins the season with bright green blades. In late summer and early fall, it produces silvery inflorescences which complement its golden-hued autumn foliage and persist throughout the winter.

no image available Silene regia
(Royal catchfly)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This North American prairie native produces 2-inch-wide, brilliant cardinal-red flowers that stand out in the summer garden. The common name comes from the sticky glands below the flowers that catch small insects. The plant grows 2 to 4 feet tall and half as wide.

Silphium laciniatum Silphium laciniatum
(Compass plant, Pilot plant, Polar plant)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tall, sturdy prairie plant makes an imposing statement in the garden with its large, deeply cut leaves and yellow sunflower-like flowers that face east and bloom in late summer and early fall. The leaves of the compass plant can grow up to 18 inches long and are deeply incised with a shape that looks like something from a painting by Matisse. They align themselves on a north-south axis to conserve moisture by avoiding the midday sun. This plant requires a few years to enlarge and flower, but once its deep roots are anchored, it will live for many years.

Smilacina racemosa Smilacina racemosa
(Solomon's plume, False Solomon's seal)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This shade-loving perennial produces plumes of creamy white blossoms in spring, followed by mottled yellowish-green berries that turn to deep red. The fragrant, ivory white blossoms occur on the ends of arching branches, distinguishing them from true Solomon's seal (Polygonatum). The plant grows to 3 feet high and 2 feet wide.

no image available Solidago caesia
(Goldenrod, Wreath goldenrod, Blue-stemmed goldenrod)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In early autumn, this species produces elegant, wand-shaped flowerheads atop wiry stems with blue-green, linear leaves. It is found in open woods and along woodland edges, and prefers some shade. It responds well to rich soil, but can tolerate dry soil also. 

Solidago cutleri 'Goldrush' Solidago cutleri 'Goldrush'
(Goldenrod, Alpine goldenrod, Cutler's alpine goldenrod)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Goldrush' heralds the coming of fall with masses of tiny, yellow flowers for four weeks in August and September. Its compact size—about a foot tall—makes it a great candidate for a rock garden or border edge.

Solidago flexicaulis Solidago flexicaulis
(Goldenrod, Zigzag goldenrod)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species is aptly named for its distinctive crooked stems that bend back and forth at 45° angles between nodes. It bears starry, medium-yellow flowers atop 1- to 3-foot tall stems. 

Solidago juncea Solidago juncea
(Goldenrod, Early goldenrod, Yellow top)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is the first goldenrod to bloom, featuring bright yellow, plume-like panicles in midsummer. It has dark green leaves along reddish stems, which form a vase-shaped clump when mature. 

Solidago nemoralis Solidago nemoralis
(Goldenrod, Gray goldenrod)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is one of the smallest species of goldenrod, topping out at only 4 to 6 inches high in poor soils, and 2 feet high in fertile soils. It is considered a garden-worthy species, with gray-green leaves that form clumps and languid, one-sided yellow plumes. It is tolerant of both sandy and clay soils.

Solidago rigida Solidago rigida
(Goldenrod, Stiff goldenrod)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This lovely goldenrod has velvety leaves that are gray-green in summer and dusky rose in autumn. It has broad, flattened clusters of rich yellow flowers, which create a striking display on stems 2 to 5 feet tall.

no image available Solidago rugosa
(Goldenrod, Rough-stemmed goldenrod)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species has open, tree-shaped flower clusters that radiate out like a fountain. It has given rise to S. rugosa 'Fireworks'.  It can grow to 7 feet tall and blooms in mid- to late autumn.  

no image available Solidago speciosa
(Goldenrod, Showy goldenrod)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This garden-worthy species has dramatic, bright yellow flowers that are arranged into erect, pointed clusters. It has deep reddish stems that grow to 3 feet tall. It blooms in late summer and early autumn.

Solidago sphacelata 'Golden Fleece' Solidago sphacelata 'Golden Fleece'
(Goldenrod, Creeping goldenrod)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This outstanding cultivar forms a neat, 1-foot tall groundcover. It has dense, branched panicles that splay upward and outward whimsically, resembling a mass of elegantly bunched bouquets. 

Sorghastrum nutans 'Indian Steel' Sorghastrum nutans 'Indian Steel'
(Indian grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Golden yellow plumes and a vase-like form give 'Indian Steel' a refined look. On the flower spikes, bright yellow pollen sacs stand out against the darker seed heads. Metallic blue foliage morphs to a coppery tan shade after frost. 'Indian Steel' tolerates a range of soil types, including heavy clay. -Scott Vogt, Native grasses, Fine Gardening issue #124

Sphaeralcea ambigua Sphaeralcea ambigua
(Desert mallow, Globe mallow)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This shrubby, woolly perennial is native to the warmest, dry regions of the US and Mexico. Its large, rose-like salmon-colored flowers appear in loose clusters from spring to frost. It grows to 3 feet tall and almost as wide, and can bloom nearly year-round in warm regions.

Spiraea fritschiana Spiraea fritschiana
(Fritsch spirea)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

If you want a summer-flowering shrub with great fall color, look no further. Fritsch spirea jumps out with a striking red, orange, and yellow glow even brighter than the fall color of oaks and maples. It has coarser foliage than others in the genus, and if sheared back in spring, it produces giant summer blooms.

Spiraea japonica 'Alpina’ Spiraea japonica 'Alpina’
(Japanese spirea)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This low-growing, clump-forming shrub has a spreading habit, reaching 10 inches tall. Slender branches spread across the ground. Foliage is light blue-green to 1 inch long. In late June, this plant bears clusters of pink flowers; bloom continues into September if deadheaded.

Spiranthes cernua 'Chadds Ford' Spiranthes cernua 'Chadds Ford'
(Ladies’ tresses)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This deciduous, terrestrial orchid has linear, acute leaves 2 to 10 inches long. At summer's end, it produces sweet, vanilla-scented, 1- to 3-foot spires of white flowers that last for weeks and hold up well as cut flowers.

Sporobolus heterolepsis Sporobolus heterolepsis
(Prairie dropseed)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The finely textured, green leaves of this slow-growing, clump-forming perennial turn golden yellow in autumn. It bears cloudy panicles of fragrant, pale-pink to tawny flowers 5 to 10 inches long in late summer, reaching 3 feet tall.

Stipa tenuissima Stipa tenuissima
(Mexican feather grass)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

No other grass exhibits quite the refinement of texture as this species. Its bright green foliage resembles delicate filaments that arise in elegant, vase-like clumps and spill outward like a soft fountain. All summer it bears a profusion of feathery panicles, which mature from foamy-green to blonde. It is native to the Americas.

Stokesia laevis ‘Peachie’s Pick’ Stokesia laevis ‘Peachie’s Pick’
(Stokes' aster)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant grows exuberantly and fills out within a season, yet reaches only 18 to 20 inches tall. It bears terminal, cornflower-like, 2- to 3-inch-wide blue flowers held on strong stems. Plants do not splay open in the middle or fall over like the species does.

no image available Thalictrum delavayi 'Hewitt's Double'
(Yunnan meadow rue)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar has some of the showiest flowers of the meadow rues. From mid-summer to early autumn, it bears tight, pompom-like clusters of lilac-mauve sepals atop wiry, purple tinted stems and delicately textured foliage. Plant toward the back of a border; it may require staking.

no image available Thalictrum flavum ssp. glaucum
(Yellow meadow rue, Dusty meadow rue)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This classy specimen has beautifully textured, blue-gray foliage. Its summertime pale yellow flowers are petalless and fringed, occurring in clusters atop chalky bluish gray stems. Plant at the back of a border; it may require staking.

Thalictrum isopyroides Thalictrum isopyroides
(Meadow rue)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species has exquisite tiny foliage that looks somewhat like parsley but with a steely blue cast. The leaves clothe stems that reach up to 18 inches in height. In early summer, it bears tiny greenish yellow flowers in starlike clusters. Plants grow to about 18 inches wide.

Thalictrum rochebruneanum Thalictrum rochebruneanum
(Meadow rue)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This beautiful specimen has tall, delicate stems punctuated by clusters of columbine-like, bluish gray leaves. In summer, it bears sprays of nodding lavender-pink or white flowers with pale yellow stamens that reach as high as 3 feet. Plants grow to 12 inches wide. Plant at the back of a border; it may require staking.

Thalictrum rochebruneanum 'Lavender Mist' Thalictrum rochebruneanum 'Lavender Mist'
(Meadow rue)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This hauntingly beautiful specimen has blue-green foliage along matte, purple-green, willowy stems. At 5 or more feet in height, it has a dramatic yet delicate garden presence. Its sprays of nodding lilac flowers have pale yellow stamens. Plant at the back of a border; it may require staking.

no image available Thuja occidentalis 'Bobazam'
(American arborvitae, Eastern arborvitae, White cedar)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This evergreen shrub with finely textured sage green foliage forms a perfect, 3-foot-diameter, slow-growing globe, hence its name, Mr. Bowling Ball®.

Thymus 'Pink Ripple' Thymus 'Pink Ripple'
(Thyme)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In early- to mid-summer, this mat-forming thyme erupts with masses of 6-inch-high spikes covered with pink flowers. The light green, tiny foliage, hugging the ground in mats, has a pleasing lemon fragrance when crushed. This plant shines when spilling over stone walls or between the cracks in paving stones, where passersby can tread on the leaves and release the lemony scent.

Thymus × citriodorus 'Argenteus' Thymus × citriodorus 'Argenteus'
(Silver thyme, Lemon-scented thyme)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant is an elegant addition to an herb or ornamental garden. It has lemon-scented green leaves edged in silver and produces lilac flowers in early summer.

Thymus pseudolanuginosus Thymus pseudolanuginosus
(Woolly thyme)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Woolly thyme—the wooliest of all thymes—forms a dense ground-covering mat of tiny, densely hairy leaves. The foliage has barely any fragrance and is unsuitable for culinary use. In summer, tiny pink tubular flowers appear. Plants grow to only one inch or so in height and spread to about a foot across.

Thymus serphyllum 'Annie Hall' Thymus serphyllum 'Annie Hall'
(Mother of thyme, Wild thyme, Serpolet)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Annie Hall' forms a prostrate mat with small, narrow leaves and is covered with pale purple-pink flowers in late spring. Plants can grow to 10 inches tall and 18 inches wide.

Thymus serpyllum 'Pink Chintz' Thymus serpyllum 'Pink Chintz'
(Mother of thyme, Wild thyme, Serpolet)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

One of the first thymes to flower each year, this charming and reliable cultivar bursts into bloom in early spring with unique salmon-pink flowers. Its fuzzy olive-green foliage forms a mat 1 to 2 inches tall and 18 inches wide. It is one of the most tolerant of thymes of dry conditions, but grows robustly with plenty of water.

Tiarella 'Dark Eyes' Tiarella 'Dark Eyes'
(Foam flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This running cultivar has notably large light-pink flowers that appear in spring and then rebloom. It has a compact habit with maple-like leaves marked with burgundy centers. Foliage turns bronze in the fall. Plants grow to about 14 inches tall and slightly wider.

no image available Tiarella wherryi 'Oakleaf'
(Foam flower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar of the North American species has reddish, deeply lobed, oak-like leaves that mature to dark green with burgundy splashes. From late spring to early summer it produces a profusion of starry pink flowers for up to 8 weeks. Plants grow to about 18 inches tall and wide.

Tithonia rotundifolia 'Torch' Tithonia rotundifolia 'Torch'
(Mexican sunflower)
(1 user review)

'Torch' is a quick-growing annual that produces vivid red or orange-red dahlia-like flowers from mid-summer on. Its leaves are somewhat attractive, being dark green and lobed. Plants can reach up to 6 feet tall and 2 feet wide in just a few months. 

Trachelium caeruleum Trachelium caeruleum
(Blue throatwort)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species bears dome-shaped flower heads several inches across that are crowded with tiny, tubular amethyst or white flowers that look somewhat like the blooms of an allium. It has lance-shaped, toothed leaves in hues of cordovan purple or deep green brushed with plum highlights. It blooms over a long season. Though it is a perennial, blue throatwort performs wonderfully as an annual and blooms summer to fall. Plants grow to about 3 feet tall and wide.

Tricyrtis 'Tojen' Tricyrtis 'Tojen'
(Toad lily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This luminous hybrid bears unspotted, orchid-like lavender flowers with yellow-throated bases. It has unusually large and clean leaves, which look great all season. It grows up to 3 feet tall, although its lovely, almost weeping, habit keeps the plant's height closer to 2 or 2.5 feet. It grows to about 3 feet wide. Toad lilies make subtle but exotic specimens for woodland borders and other shady sites.

Tricyrtis formosana Tricyrtis formosana
(Toad lily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The upward-facing, star-like blossoms of this species vary from white to light pink or lilac, with reddish purple spots throughout. They are reminiscent of orchids. Toad lily blooms in early autumn along arching stems to 2 or 3 feet tall. Plants grow to 2 feet wide. They make subtle, but exotic specimens for woodland borders and shady house plantings. They will colonize over time, but are not invasive. These perennials are from moist woodlands and high elevations from eastern Asia to the Phillipines.

no image available Tricyrtis formosana ‘Amethystina’
(Toad lily)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Amethystina's upward-facing, star-like blossoms are bluish-lavender with purple spots and creamy bases. It blooms in early autumn along arching stems up to 3 feet tall and grows half as wide. Toad lilies make subtle but exotic specimens for woodland borders and other shady gardens.

Tricyrtis hirta Tricyrtis hirta
(Toad lily)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The star-like blossoms of this species are white with rich purple spots and purple stigmas. It blooms in late summer to mid-autumn along arching stems up to 2.5 feet tall. 

Tropaeolum majus 'Mahogany Jewel' Tropaeolum majus 'Mahogany Jewel'
(Indian cress, Nasturtium)
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This old-fashioned cultivar of the species has a mounding habit and grows 12-18 inches tall and wide. In summer and fall, it bears mahogany red, single to semi-double flowers. The rounded leaves and spurred, five-petaled flowers are edible.

Verbascum bombyciferum Verbascum bombyciferum
(Mullein, Nettle-leafed mullein, Turkish mullein)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This biennial or short-lived perennial has evergreen woolly leaves like silvery flannel that make sensuous-looking rosettes in the first year. In mid- to late summer of its second year, large sulfur-yellow blossoms open from the bottom up on flower stalks that reach up to 6 feet high. Blooming continues for many weeks. Verbascum bombyciferum has naturalized in regions of the U.S.

Verbena bonariensis Verbena bonariensis
(Tall Verbena)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This outstanding annual or perennial deserves its popularity. It makes an architectural statement with slender, willowy stems that stand up to 6 feet tall and do not need staking. It then branches out widely near the top where rich lilac-purple flower clusters stand alone, as if they are floating. This Verbena makes a great see-through plant.

no image available Verbena canadensis 'Apple Blossom'
(Rose vervain)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This low-growing perennial produces long-lasting light pink blossoms with dark pink centers. It is an heirloom cultivar of the native species. Verbenas are excellent for annual borders, containers—especially hanging baskets—and some for the mixed herbaceous border.

no image available Veronica pectinata
(Blue woolly speedwell, Woolly speedwell)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This dense, mat-forming species has 3-inch-tall evergreen foliage with toothed gray leaves. Its saucer-shaped flowers are deep blue with white eyes, and they bloom from early spring to summer. It is drought tolerant and makes a good groundcover. In garden sites, it needs protection from winter moisture.

Veronicastrum sibiricum Veronicastrum sibiricum
(Culver's root)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species has multiple 5- to 7-foot-tall, tapering spikes of pinkish-lavender flowers from summer to fall. They look like elegant, living candelabras and add a vertical accent to the back of a mixed border or wild garden.

no image available Zauschneria arizonica
(Hardy hummingbird trumpet, Arizona fuchsia, Firechalice, Wild fuchsia)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This heat-loving native Southwestern species has gray-green leaves and grows to 3 feet tall and 2 feet wide. Orangey red, tubular blossoms cover the plant in late summer and early fall.


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