(Coneflower) Echinacea Summer Sky is a delightful new coneflower with bicolor flowers! The large 5 inch flowers are light orange with a rose colored halo and orange cone. Appropriately named, this new Echinacea resembles the colors of a romantic summer evening sky. Summer Sky is a prolific bloomer and wonderfully fragrant! Known to hold its flower color longer than other coneflowers.