Echinacea tennesseensis 'Rocky Top'
Do any of you grow this coneflower (Echinacea tennesseensis 'Rocky Top'? I have been a little put off by coneflowers because they never seem to thrive, even with good drainage. Every year their numbers dwindle in my garden, they get unsightly diseases, and their flower colors are never as vibrant as when they are first purchased. I am hoping this southeastern native will be more happy in our climate. Do you have any words of experience? Thanks