Perennial. Deciduous. This prolific flowering shrub bears enormous, ball-shaped flower clusters ranging from blue & pink to purple, often all three at the same time, color blend depends on soil pH. Blooms on old & new growth. Nice compact growth. Good cut flower. Attracts butterflies & hummingbirds. Blooms: summer-fall. Bloom color: dp blue-violet. Height: 5'. Width: 5'. Exp.: part shade/shade. Water: moderate. USDA Z5.