Hydrangea can be deciduous or evergreen shrubs, or self-clinging climbers, with flowers in clusters usually comprising both small fertile and more showy sterile flowers; often good autumn colour
H. aspera subsp. sargentiana is an upright medium-sized deciduous shrub of open habit, with peeling bark and large, velvety ovate leaves. Flowers in large flat heads, purple or blue, surrounded by white ray florets