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

Stokesialaevis

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Stokesia (sto-KEES-ee-uh)
Species
laevis (LEE-viss)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Height
6-12 in. (15-30 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
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)
Bloom Color
Light Blue
Blue-Violet
Bloom Time
Mid Summer
Other Details
Category
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
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
Regional

This plant is said to grow outdoors 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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Featured Videos

Gardener's Notes:

2
positives
1
neutral
0
negative
Sort By:
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D
Prescott, AZ (Zone 7b) | October 2012 | positive

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 s...Read More

S
Monroe, NC (Zone 8a) | June 2010 | positive

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. ...Read More

T
Warren, OH | June 2005 | neutral

Vigorous clumping perennial with blue purple flowers attractive to butterflies and hummingbirds. Blooms profusely in June, July. LIkes ...Read More

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