The classic brilliantly white “mop-head” blooms of ‘Annabelle’ are evident from May-July, and can be 12" in diameter. The shrub’s shape is definitely a rounded mound, broader than high at maturity. Figure the height at 3-5'. Try it with Spiraeas for a real summer show. Deciduous ‘Annabelle’ can be cut to within 6" of the ground in late winter.