Symphyotrichum Species, Azure Aster, Prairie Heart-Leaved Aster, Skyblue Aster, Wild Aster

Symphyotrichumoolentangiense

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Symphyotrichum (sim-fy-oh-TRY-kum)
Species
oolentangiense (o-luhn-tan-jee-EN-see)
Synonym
Aster azureus
Aster oolentangiensis
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Spacing
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
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)
Danger
N/A
Bloom Color
Light Blue
Bloom Time
Late Summer/Early Fall
Mid Fall
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
Bloom Size
Other details
Soil pH requirements
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
From softwood cuttings
From seed; direct sow outdoors in fall
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Cordele, Georgia

Cedar Falls, Iowa

Yale, Iowa

Elsberry, Missouri

Beatrice, Nebraska

North Augusta, South Carolina

Memphis, Tennessee

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Featured Videos

Gardener's Notes:

2
positives
1
neutral
0
negative
Sort By:
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M
M
Memphis, TN (Zone 7b) | September 2014 | positive

It's a very pretty native plant. In some states it's endangered. This is a host plant for the the larvae of the Northern Flower Moth (Sch...Read More

D
D
Cedar Falls, IA (Zone 4b) | July 2007 | positive

Small, but abundant vividly blue flowers with yellow centers seem to float from a distance, as the stems are very delicate & the long, na...Read More

D
west Houston, TX (Zone 9a) | June 2006 | neutral

Found primarily in the tallgrass prairie of the central U.S., this aster has blue-green, heart shaped leaves on multi-branched stalks. it...Read More

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