Photo: Clymer Meadow Preserve

With their characteristically droopy petals, Black Samson coneflowers seem ready to turn down for the night as the sun sets on the Clymer Meadow Preserve northwest of Greenville. The preserve protects remnants of the Blackland Prairie, a tallgrass prairie that once stretched from the Texas coast to Canada. Prairies and pastures in North Texas and the plains of the Panhandle provide native habitats for this perennial, which blooms April through July and can also be propagated in gardens.