Viburnum macrocephalum sterileDeciduous flowering shrub to small tree to 15' or more with highly showy white flowers in 5" balls in spring and sporadically produced in summer and fall. The best snowball bush for the SE. Plant in full sun to part sun. Give good drainage and average water. Drought tolerant once established. Few pests. Deer resistant. USDA zones 5-8 in cold hardiness.