Growing coneflowers (Echinacea spp.) is the easiest way to ... favor single-flower varieties over their ruffled or pom-pom double-flower brethren. That's because when a coneflower has more petals ...

There are so many coneflower varieties, you'll be spoiled for choice when it comes to understanding how to grow coneflower. Echinacea is a hardy perennial that survives very cold winters.