Thickspike Gayfeather (Liatris pycnostachya)
Synonyms: Prairie Blazingstar, Prairie Gayfeather, Kansas Gayfeather
A hardy perennial, has linear leaves, spikes of purple flowers which bloom from the top down; blooms July to mid-August. Found across IN to SD, south to FL, LA and TX; moist to dry prairies. Best in full sun, prefers moderate to moist soils but can be drought resistant, tolerant of heat and humidity; good for borders, meadows – may need staking, attracts birds and butterflies, a good cutflower.