Aromatic Aster (Aster oblongifolius)

Aromatic Aster (Aster oblongifolius)

This aster is fantastic for two reasons: it’s short and it blooms very late in the fall, providing beauty and pollinator value when all other flowers are going dormant. Spreads slowly by underground roots (rhizomes), so plant in between grasses that can keep it in check.


Sun:    Full Sun
Moisture:    Dry, Medium
Height:    2 feet
Blooms:    Sept, Oct, Nov
Color:    Purplish Blue
Spacing:    18″
Zones:    3-8
Benefits:    Butterflies, Pollinators

Design Tips

Aromatic Aster spreads by underground rhizomes (roots) about 9 inches a year, so to prevent it from spreading too much, plant grasses such as Prairie Dropseed or Little Bluestem in a circle around it–their roots will keep it in check.

Companion Plants

Prairie Dropseed
Grey Goldenrod
Little Bluestem