The best of its kind with spherical flower heads, steel-blue in bud opening to large balls of powdery mauve-blue when in full flower. Bold divided foliage, stiff vertical stems and the drumstick flower heads give this plant great architectural strength. We cut it back to the ground in summer when the first flowers are finished and are rewarded by another display in autumn. Full sun. Drought tolerant when once established. 150cm x 75cm