Does better in well-drained soil. I will sometimes have a few plants left over at the end of the season. Even with much neglect I can find them in flower when I'm ready to shut down for the season.

Environment:  Prairie  Savanna  Woodland  Wet  Wet Mesic  Mesic  Dry Mesic  Dry  Butterfly/Caterpillar

Bloom Period:  April  May  June  July  August  September  October