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Browse Plants

Narrowed By:Type: Annuals, Bulbs+ Flower Color: Blue+ Botanical Name: A - C
Displaying 1 - 8 of 8 listings   Sort By: Sort
Ageratum houstonianum Ageratum houstonianum
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

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

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

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

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

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

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

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.

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.

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

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

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 - 8 of 8 listings   Sort By: Sort