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Browse Plants

Narrowed By:Type: Annuals, Grasses+ Flower Color: Blue+ Seasonal Interest: Fall
Displaying 1 - 9 of 9 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

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.

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.

Festuca glauca 'Boulder Blue' Festuca glauca 'Boulder Blue'
(Blue fescue, Gray fescue)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Regarded by some as the bluest blue fescue, this plant forms compact, cascading mounds of foot-tall, intensely blue, narrow leaves that are attractive in all seasons. Blooms are generally secondary to the foliage, but this cultivar blooms more heavily than most, with spikelets in summer. This cultivar is long-lived and very hardy. Grow in groups in a border or rock garden, or as a groundcover. 

Festuca glauca 'Elijah Blue' Festuca glauca 'Elijah Blue'
(Blue fescue, Gray fescue)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

These compact tufts of 8-inch-long powder-blue leaves are well suited for edging and naturalizing in the rock garden. 

Lathyrus odoratus and cvs. Lathyrus odoratus and cvs.
(Sweet pea)
(1 user review)

This annual climber has winged stems and deliciously fragrant, ruffled blossoms. Many cultivars exist with varying bloom color (solid, mixed, or bicolor), size, and climbing habit.

no image available Salpiglossis sinuata and cvs.
(Painted tongues)
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Long, narrow leaves grow in rosettes near the ground. Flower stems shoot upward to 2 feet with 3-inch-wide, petunia-like, purple, blue, or scarlet flowers marked with broad veins of gold. Cultivars include 'Splash,' 'Bolero,' and the more compact-growing 'Casino'.

Viola tricolor Viola tricolor
(Heartsease, Johnny-jump-up, Love-in-idleness, Wild pansy)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This annual, biennial, or short-lived perennial is grown for its long season of pansy flowers in shades of purple, blue, yellow, and white. Viola tricolor is pretty in containers, as edging, or as a companion for bulbs. It self-seeds readily.


Displaying 1 - 9 of 9 listings   Sort By: Sort