The Hydrangea 'Late Panicle', Hydrangea paniculata 'Tardiva', This shrub has white airy flowers that can reach 10-12" in length in late August. The flowers are a mixture of sterile and fertile flowers which gives the flowers less density and less likelihood to tip or droop. Flowers will turn bronze in fall.
These shrubs are fast growing and are great for informal screens, specimen plants, or for cut arrangements. Prune every year in the fall after blooming, no more than 1/3 of the plant. These plants look best when they are kept pruned to keep them thick at the base. They are hardy and will not need to be covered to flower.