Symphyotrichum oolentangiense- Sky Blue Aster

Perennial growing up to 3 feet. Grows in full sun and dry to medium soils. Showy purple flowers bloom from September to October and attract a variety of pollinators. 
 
Species: Symphyotrichum oolentangiense
Aster family: Asteraceae
Other Common Names: Sky Blue American-aster, Azure Aster