Seeds from Echinacea purpurea Powwow Wild Berry A wonderful drought tolerant 16 – 24″ perennial in this striking deep rose purple blooms and fuzzy stems and leaves. Grown in gravelly, sandy, and rocky dry limestone prairies, this plant needs very little extra care. It is hardy to zone 3 and is not frost tender. It is in flower from Jul to August. Zones 3 to 9.