Hydrangea paniculata grandiflora

From Gardening Wiki

HYDRANGEA PANICULATA GRANDIFLORA

A beautiful shrub to 8 ft., bearing immense cone-shaped clusters of white flowers in July and August; almost sterile; turns a bright pink, and finally, to bronze, as they become older. Very attractive when planted at the extremity of a neck of planting extending out on the lawn or as specimen plants near the house. It should be cut back every spring before growth starts. There is no shrub more showy than this old favorite.