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Browse Plants

Narrowed By:Type: Perennials+ Flower Color: Blue
Displaying 1 - 20 of 143 listings   1 | 2 | 3 | 4 | 5 | 6 | 7 | 8View AllNext > Sort By: Sort
Agapanthus praecox orientalis ATIblu Agapanthus praecox orientalis ATIblu

(Blue Storm™ agapanthus)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Compact, easy care and drought tolerant, Blue Storm is one of the Storm™ series of agapanthus that produce more flower stems than any other agapanthus.   In fact, Blue Storm flowers on average 10 weeks per season (up to two to three weeks longer than most other varieties). -Anthony Tesselaar Plants

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Aster 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.


Displaying 1 - 20 of 143 listings   1 | 2 | 3 | 4 | 5 | 6 | 7 | 8View AllNext > Sort By: Sort