This is my Echinacea patch. I started these plants early spring in the greenhouse, then planted it outside in June. This is the second year of growth, lots of flowers! I have this patch just outside my 20 X 50 greenhouse. Echinacea are very drought tolerant and can grow in a range of soil types from fertile to poor soil. But make sure it is well draining I have babied these, and I have made sure the soil is moderately fertile.