Amsonia ciliata

fringed blue star

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  • © Lady Bird Johnson Wildflower Center

Outstanding Qualities

In late spring to early summer, periwinkle blue flowers cluster at the stem tips of this long-lived perennial creating a delicate contrast with light green, feathery foliage. By midsummer the plants give the impression of billowing clouds melding with the surrounding landscape. Native to the southeastern United States, Amsonia ciliata is one of the best clump-forming perennials for fall color, shining a radiant bright yellow before going dormant for the winter.

Quick Facts

Plant Type: perennial

Foliage Type: deciduous

Plant Height: 3 ft. 0 in. (0.91 meters)

Plant Width/Spread: 2 ft. 0 in. (0.61 meters)

Hardiness: USDA Zones 6 to 10

Flower Color: blue

Sun/Light Exposure: full sun

Water Requirements: regular watering

Seasonal Interest: late spring - early summer flowers; autumn foliage color

Wildlife Associations: bees, butterflies

Resistant to: deer

Colors & Combos

Great Plant Combinations: Calamagrostis x acutiflora ‘Carl Foerster’, Narcissus ‘February Gold’, Rhododendron ‘Snowbird’, Astrantia major ‘Rubra’, Geranium ‘Brookside’, Leucojum aestivum ‘Gravetye Giant’

Great Color Contrasts: yellow, white

Great Color Partners: blue, green, pink, purple

Culture Notes
This long lived perennial prefers a rich well-drained soil and regular summer watering. Plant it in full sun for the best flowering and brightest fall color. Be patient with new young plants, often they can look a little straggly and forlorn and may take a few years to fill out. To help plants establish give them some space to minimize competition. Once they mature they will be long lived and robust, full specimens.
Geek Notes
Native to North Carolina and south to Florida then west through Missouri, Arkansas and Texas.