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Browse Plants

Narrowed By:Flower Color: Blue+ Seasonal Interest: Spring+ Spread: 1 - 3 ft
Displaying 1 - 20 of 54 listings   1 | 2 | 3View 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.

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.

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.

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

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

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

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

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

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

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

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

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

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

Campanula 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.

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

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

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

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

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

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

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

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

Corydalis flexuosa '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.


Displaying 1 - 20 of 54 listings   1 | 2 | 3View AllNext > Sort By: Sort