Viburnum - Chinese SnowballThe Chinese Snowball is a deciduous, ornamental shrub that produces large balls of double white flowers that bloom all summer long. The Snowball can grow between 10 12 feet with a 15 18 foot spread and has an open habit. It is hardy to Zone 7 and is particularly good for planting in the lower South. It can be planted in full sun to partial shade and prefers moist, well drained, slightly acidic soil.