Q: We have a butterfly and bee garden in our yard with varieties of Echinacea and Rudbeckia. This fall I noticed several of the seed heads had odd-looking growths. I removed the seed heads from all ...
Despite their hardiness, all types of coneflowers (Echinacea spp.) can suffer from diseases and pests. In my experience, common coneflower diseases include aster yellows, leaf spot, powdery mildew, ...