Reaching 15’ high with a similar spread, ‘Sierra Blue’ offers open stems of glossy, medium-green leaves and hanging, 8” flower clusters. These large pendulous flower clusters appear each spring like blue lanterns the color of a “Sierran sky.” Fast growing, it requires pruning to enhance its shape. An excellent selection for Southern California in both coastal and inland gardens, where it is useful as a screen or hedge and well-suited to pruning. In shady locations the foliage is open and sparse. Hardy to about 15F.
