Caryopteris (Blue Mist) 'dark knight' is one of the best Blue Mist Spirea varieties, 'dark knight' has the deepest blue color of them all. Its tidy, upright growth habit and profusion of flowering spikes make it an essential part of the summer landscape. A reliable performer, 'Dark Knight' flowers heavily every year. Of modest size, it can be used in front of low walls, as a hedge or in groups around the base of larger shrubs, small trees and upright evergreens. The plant can be treated like a perennial and cut back hard in fall, or treated as a shrub just removing spent seed heads. Blue Mist will self sow, although not an agressive spreader. 3 gal

Blue Mist 'dark knight'