Six- to 12-inch single, semidouble, or double flowers appear in late spring. Many colors and varieties. Foliage is gray-green.
Zone: 5
Light and Soil: Partial shade; can tolerate full sun. Rich, moist, well-drained soil.
Height: 7'
Comments
Very showy with flashy flowers. Use as specimen plants or in beds. Protect in winter in cold winter areas. Hardier than they look. Occasionally need staking.