Native plants provide beauty as well as food and shelter for wildlife. Native species are adapted to the Illinois climate. They require little or no watering and are resistant to drought, insects and most diseases. Because they are perennials, you can welcome their presence year after year.
Photo © Illinois Department of Natural Resources
Smooth aster is found in prairies, roadsides, fens and on rock ledges statewide. A single plant may attain a height of up to 36 inches. This member of the aster family has smooth stems with a blue-green appearance to the stems and leaves. Leaves clasp the stem. The flower heads have violet to blue ray flowers and are produced from July through October. Pollinators are attracted to the pollen and nectar of the flowers.
Classification and taxonomy are based on Mohlenbrock, Robert H. 2014.
Vascular flora of Illinois: A field guide. Fourth edition. Southern Illinois University Press, Carbondale. 536 pp.