GROWTH HABIT: Pyramidal to upright oval. Very regular and formal in appearance.
SIZE: 8 - 15' in cultivation, up to 30' in the wild
HARDINESS: Zone 7 - 9. Tremendous variation in the hardiness of the different cultivars. A plant collected by the Morris Arboretum at the University of Delaware Botanic Gardens has escaped all injury at 0°F.
CULTURE: Some sun, but does better in partial shade. Moist, well-drained, acidic, high organic matter soils.
FLOWERS: Perfect, solitary, 5 - 7 petals, 3 - 5" across, white, pink or red. Considerable effort has been spent to create doubles (most all cultivars greatly exceed 7 petals) and color variation in the range stated, including various speckled, bicolors, etc. Plants flower in March - April when grown outside in the Delaware valley.