previous
  • DIY A-Frame Veggie Trellis
    DIY A-Frame Veggie Trellis
  • Building Better Borders
    Building Better Borders
  • Seed Starting in Speedling Trays
    Seed Starting in Speedling Trays
  • Indoor Seed Starting Materials List
    Indoor Seed Starting Materials List
  • Planting the Right Way
    Planting the Right Way
  • Plant Finder: Spring Plants
    Plant Finder: Spring Plants
  • Get your FREE Everyday Roses download now!
    Get your FREE Everyday Roses download now!
  • Rex Begonias
    Rex Begonias
  • Pick Plants for Fragrance
    Pick Plants for Fragrance
  • 20 Gardenworthy Self-Sowers
    20 Gardenworthy Self-Sowers
  • Using Containers as Elements of a Design
    Using Containers as Elements of a Design
  • 10 Seed-Starting Tips
    10 Seed-Starting Tips
  • Go Green on the Patio
    Go Green on the Patio
  • Garden Design Basics
    Garden Design Basics
  • Homegrown / Homemade
    Homegrown / Homemade
  • Black Plants Done Right
    Black Plants Done Right
  • 3 Ways to Design with Containers
    3 Ways to Design with Containers
  • How to Grow Mustard
    How to Grow Mustard
  • NEW Video Series: There's a Better Way
    NEW Video Series: There's a Better Way
  • 10 Combinations for Shade
    10 Combinations for Shade
  • Pantone Color of the Year 2014: Radiant Orchid
    Pantone Color of the Year 2014: Radiant Orchid
  • Bold and Beautiful Zinnias
    Bold and Beautiful Zinnias
next

Browse Plants

Narrowed By:Type: Perennials+ Zone: 6+ Flower Color: Blue, Green
Displaying 1 - 20 of 117 listings   1 | 2 | 3 | 4 | 5 | 6View AllNext > Sort By: Sort
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 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.

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

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

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

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

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.

Amsonia hubrichtii Amsonia hubrichtii
(Arkansas blue star)
Be the first to rate this plant
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)
Be the first to rate this plant
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)
Be the first to rate this plant
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.

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

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

no image available Aquilegia alpina
(Alpine columbine)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

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

Aquilegia caerulea Aquilegia caerulea
(Rocky Mountain columbine)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

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

no image available Aquilegia flabellata
(Fan columbine)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

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

Aquilegia vulgaris Aquilegia vulgaris
(Granny’s bonnet)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

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

no image available Aralia racemosa
(Spikenard)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is a vigorous grower. Its beautiful dark fruits, which arrive after the flowers, bring an abundance of birds.

Arisaema triphyllum Arisaema triphyllum
(Jack-in-the-pulpit)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

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

Asparagus officinalis Asparagus officinalis
(Asparagus)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

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

Aster × frikartii Aster × frikartii
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

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

Aster × frikartii 'Wonder of Staffa' Aster × frikartii 'Wonder of Staffa'
('Wonder of Staffa' aster)
Be the first to rate this plant
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)
Be the first to rate this plant
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 ericoides Aster ericoides
(Heath aster)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

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


Displaying 1 - 20 of 117 listings   1 | 2 | 3 | 4 | 5 | 6View AllNext > Sort By: Sort