Although there were once almost 2,000 cultivars in production, today there are about 50 that are commonly available. Some favorite varieties include "Anna Marie', 'Blue Festival', 'Blue Star', 'Carnegie', 'City of Haarlem' (a yellow variety), 'Gipsy Queen' (coral), 'Miss Saigon', 'Purple Sensation', "Woodstock', and 'White Festival'.