Hydrangea heteromalla is a species of flowering plant in the family Hydrangeaceae. It is commonly known as woolly hydrangea, Himalayan hydrangea or Chinese hydrangea[1] and is native to the Himalayas and China. Average height is 10'-15' with inflorescences that are 5"-8" across and bloom May–June, full flowering only occurs in full sun. Leaves are elliptical or ovate and margins are slightly serrated. Is a very adaptable plant that is hardy to USDA zones (4)5-7. This plant is seldom seen in American gardens. There is a nice specimen at the Sir Harold Hillier Gardens.[2] Hydrangea heteromalla is a deciduous shrub or small tree. Its native habitats include alpine forests and thickets in the Himalayas and China.