Here's a reliable perennial for your wildflower display. Or you can integrate it with more formal settings as a floral splurge! Each flower stem produces a single bloom with yellow petals around a brown cone-shaped seed head. It is very drought tolerant. This yellow beauty will spread its seeds and flourish.
Pictures from Walters Gardens Inc.
16"-36" inches tall
July, August, September
Trim to the ground in late fall after several frosts