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Illinois Native Plant Guide - Smooth Blue Aster - Pages

Illinois Native Plant Guide

Smooth Blue Aster
Aster laevis

Preferred Water Depth and Inundation Tolerance

Can tolerate wet-mesic conditions for short durations and seasonal inundation. Species prefers dry upland areas.

Wildlife Value

Attracts orange sulphur butterflies.


Used to slow stormwater runoff and provide upland slope buffer stabilization.

Availability, Establishment, and Maintenance

  • Easily propagated from seed. No germination treatments are needed.
  • Seeds can be stored dry.
  • Cuttings may be rooted.

Smooth Blue Aster
Aster laevis

Mature HeightSmooth Blue Aster
3-5 feet

Plant Type
Perennial herb

Indicator Status


Nutrient Load Tolerance

Salt Tolerance

Siltation Tolerance
Low to moderate

Flowering Color and Time
August to October

Light Preference
Partial to full sun

Seeding Rate
.02 - .125 lbs/acre

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