Stokes' Aster, Stokes Aster, Cornflower Aster 'Blue Star'

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
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

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Gardener's Notes:

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neutral
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negative
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