STOKESIA KLAUS JELITTO Cornflower Aster Short to Med. 18" - Plant 14" apart zone 5-9. Heavily flowers the first year, with a blue ripped outer ring, and a purple inner to white center. Huge flowers are the size of your palm! Immense disk-like flowers on 12" -18" stems. Needs some winter protection for northern gardens. Will bloom from summer until first frost, and is evergreen in the south. No garden is complete without this choice subject.