Symphyotrichum Species, Rodney's Aster, Wild Aster, Willow Aster

Symphyotrichumpraealtum

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Symphyotrichum (sim-fy-oh-TRY-kum)
Species
praealtum (pray-AL-tum)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Height
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Spacing
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Hardiness
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)
USDA Zone 11: above 4.5 °C (40 °F)
Bloom Color
Lavender
White/Near White
Bloom Time
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
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
Non-patented
Propagation Methods
Seed Collecting
Regional

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

Chandler, Arizona

Gilbert, Arizona

Mesa, Arizona

Phoenix, Arizona(2 reports)

Scottsdale, Arizona

Sun City, Arizona

Tempe, Arizona

Bowling Green, Ohio

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Gardener's Notes:

2
positives
1
neutral
0
negative
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S
Sun City, AZ (Zone 9b) | January 2010 | positive

Grew almost 5 feet tall, spent 8 weeks in late fall covered with blue/lilac blooms, brought all sorts of bees from all OVER the neighborh...Read More

A
A
Mesa, AZ (Zone 9b) | February 2008 | neutral

What a heat and sun tolerant plant this is. It does reproduce by underground runners however and our winter rains made it quite the troub...Read More

F
Josephine, Arlington, TX (Zone 8a) | October 2006 | positive

Willowleaf Aster, Symphyotrichum praealtum, is a lovely Texas Native Aster, and is on the Endangered list.

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