Stokes' Aster, Stokes Aster, Cornflower Aster 'Blue Danube'

Stokesia laevis

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Stokesia (sto-KEES-ee-uh) (Info)
Species: laevis (LEE-viss) (Info)
Cultivar: Blue Danube
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Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


6-12 in. (15-30 cm)


12-15 in. (30-38 cm)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:

Full Sun

Sun to Partial Shade


Unknown - Tell us

Bloom Color:

Light Blue


Bloom Time:

Mid Summer



Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


This plant has been said to grow in the following regions:

Arroyo Grande, California

Colorado Springs, Colorado

Milton, Florida

Zephyrhills, Florida

Hebron, Kentucky

Baton Rouge, Louisiana

Saint Francisville, Louisiana

Minneapolis, Minnesota

Stillwater, Minnesota

Vicksburg, Mississippi

Munsonville, New Hampshire

Orchard Park, New York

Monroe, North Carolina

Cleveland, Ohio

Geneva, Ohio

Warren, Ohio

Newalla, Oklahoma

Ashland, Oregon

Irwin, Pennsylvania

Knoxville, Tennessee

Jacksonville, Texas

Virginia Beach, Virginia

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Gardeners' Notes:


On Oct 20, 2012, Domehomedee from Arroyo Grande, CA (Zone 9a) wrote:

I bought four of these online last fall and was just wowed at how nice two of them looked in summer. The two that did well are in part sun and the two that I just moved were in full sun. I water regularly but with sandy soil and being in sunny California I think they will do better in part shade. I ordered six more this fall, I really like the purple/blue flowers. It's October and they are still blooming. I'm planting them under some oak trees so . . . we'll see.


On Jun 13, 2010, Steve_in_NC from Monroe, NC (Zone 8a) wrote:

I planted one specimen in an unused part of my very large back yard, part shade and clay soil, and then gave it seven years of neglect. It thrived all the while, even through drought, and it handily fought off the weeds, reliably flowering every year beginning early June. Now there are at least a half dozen plants and they have staked out their own 2'x4' patch.

I am now clearing out that neglected area. These hardy, charming plants will be divided and allowed to take over the territory. I like a survivor.


On Jun 24, 2005, Tjsangel from Warren, OH wrote:

Vigorous clumping perennial with blue purple flowers attractive to butterflies and hummingbirds. Blooms profusely in June, July. LIkes some moisture during drought, needs divided every 3 yrs. Can get powdery mildew, treat with insecticide spray. Something different for the landscape.