leftBack to Glossary

Sky Blue Aster

Symphyotrichum oolentangiense

Sky Blue Aster produces an abundance of light blue and lilac flowers in the fall. The late bloom brings a burst of color at the end of the season, and provides pollinators with a needed food source as they are preparing for winter. While other asters can spread prolifically, this well-behaved aster stays in place. It also tolerates poor soils as long as they are well-drained. Heavily mulched beds will prevent this short-lived perennial from persisting in the garden but brushing the mulch away from the base of Sky Blue Aster can help it reseed.

Details

Height24” - 36”
Spread12"
Bloom SeasonAugust – October
Soil Types
loamLoam
sandSand
Soil Moisture
dryDry
mediumMedium
Sun Exposure
partSunPart Sun
fullSunFull Sun

Range Map

Available
Not available

Ecological Benefits

Maintenance Tips

  • This is a relatively short-lived Aster - consider encouraging re-seeding by clearing the ground around this plant in the Fall and allowing some seedlings to take root in the following year.

Shop Pre-Designed Gardens

Pre-designed Garden

Or Let Us Design a
Custom Garden

Custom Garden

Shop Single Species Trays

Custom Garden