|The cultivar, 'Etna' bears flowers in a deep crimson.
C. superba is very similar to other species and hits a midpoint of height, about five feet, and a similar width, giving it a rounded appearance.This is a very attractive deciduous flowering shrub with a spreading and rounded habit. Leaves are glossy, ovate, and medium green up to 2-1/2 inches long. Clusters of white, pink, orange, scarlet, or crimson cup shaped flowers 1 to 2 inches across, are borne on spiny branches. Very nice for a shrub border or espalliered to wall. Cut branches with swollen flower buds may be forced indoors, making a welcomed winter flower arrangement. To prune, remove only crossing, diseased or broken branches. Flowering quince should never be sheared.