Caryopteris × clandonensis

Bluebeard

Is often killed to ground in winter, returning to flower in the same year. Functions much like an herbaceous perennial, primarily for flowering interest, blooming on new growth. This hybrid is much hardier than C. incana and much more showy than C. mongholica. Prefers full sun but tolerates partial shade. Attractive plant to bees, butterflies, and hummingbirds. Occasionally kills out completely at the northern edge of its useful range, with tops regularly killed back to ground in Zones 4 to 6. Best to prune to a low framework in late winter.