Symphyotrichum, Bushy Aster, Rice Button Aster 'Sapphire Mist'

Symphyotrichumdumosum

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Symphyotrichum (sim-fy-oh-TRY-kum)
Species
dumosum (doo-MO-sum)
Synonym
Aster dumosus
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Height
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
Spacing
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
Dark Blue
Blue-Violet
Lavender
Medium Purple
Bloom Time
Late Summer/Early Fall
Mid Fall
Blooms repeatedly
Other Details
Category
Alpines and Rock Gardens
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Can be grown as an annual
Bloom Characteristics
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
Patented
Propagation Methods
By dividing the rootball
Seed Collecting
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:

Dallas, Texas

Garland, Texas

Woodbridge, Virginia

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Gardener's Notes:

1
positive
1
neutral
0
negative
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J
Garland, TX | June 2010 | neutral

Planted 5 spring '09. Good growth and good fall bloom. Early summer '10 all 5 look viral, small leaves, yellowish, little growth. Usua...Read More

W
Dallas, TX (Zone 8a) | July 2009 | positive

A Proven Winners selection.

The Dallas Arboretum says in their trial garden spreadsheet, "This is an excellent aster. The...Read More

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