
Spreading aster has arching stems and fragrant blue-purple flowers late in the season, bringing nectar to sunny borders and woodland edges.
- Height
- 60–92 cm / 2–3 ft
- Spread
- 45–61 cm / 1.5–2 ft
- Light
- Full sun / Partial shade
- Soil moisture
- Dry / Moist, well-drained
- Flowering
- Fall, Summer
- Maintenance
- Low
- USDA zones
- 4a–8b
Planting
Choose sun or some partial shade and dry to moderately moist, well-drained sandy soil. Allow room for the arching stems in a border or rock garden.
Care
Keep air moving through the planting and maintain drainage around the roots. Watch for powdery mildew or wilt, especially in poorly drained clay or crowded conditions.

Planting Spreading aster?
Find a landscaper nearby to help with planting and establishment.
Find a landscaperSources & photo credit
Plant reference: NC State Extension Gardener Plant Toolbox. Content checked . Flowering seasons vary with local climate; USDA zones describe winter cold tolerance.
- Spreading aster: Fritzflohrreynolds · CC BY-SA 3.0. Resized, converted to WebP and cropped for display.
- New England aster: Drew Avery · CC BY 2.0. Resized, converted to WebP and cropped for display.
- Smooth aster: Cliff · CC BY 2.0. Resized, converted to WebP and cropped for display.
- 'Dilys' geranium: Krzysztof Golik · CC BY-SA 4.0. Resized, converted to WebP and cropped for display.


