The midsummer flowers are attractive to butterflies and other insects. They provide pollen and nectar for pollinators. It also hosts dozen of caterpillars.
They are best grouped in part shade areas of the mixed shrub border, woodland garden or as background for a perennial border. They can be naturalized in woodland or native plant gardens. Named cultivars often make showy specimens.
They transplant well from containers. Our post, Pruning Hydrangeas, has excellent information.
‘Annabelle’ – Flowers up to 12″ wide. Sterile, does not supply pollen or nectar.
‘Dardom’ (‘White Dome’) – 6-10″ flower
‘Grandiflora’ – 6″-8″ flowers
‘NCHA1’ (Invincible Spirit) – 3-4 feet, pink flowers 6-8″
‘Samanantha’ – cultivar of H. arborescens ssp radiata
‘Sterilis’ similar to ‘Grandiflora’, bloom heads flatter and as dense.
Smooth Hydrangea – USDA
Smooth Hydrangea – Missouri Botanical Garden
Smooth Hydrangea – University of Connecticut Plant Database
Smooth Hydrangea – North Carolina Extension
Recommended for Wildlife by
Bringing Nature Home by Tallamy
Essential Native Trees and Shrubs for the Eastern United States by Dove & Woolridge