Plant: deciduous shrub to 5'
Origin: woodlands, hillsides, and riverbanks of southeastern US
Zone: 4 - 9
Flowers: large balls of crowded with white flowers. Outer ones with large petals are sterile.
Foliage: simple dull leaves
Culture: sun to part shade in rich, moist soil. Flowers on new wood, so pruning back in spring is okay. Plants occasionally form runners but are easily controlled. Not affected by pH like H. macrophylla.