hydrangea 'Snowcap'

A deciduous shrub, to around 2.5m high in cultivation, with an upright habit and large, finely toothed, dark green leaves that are paler and densely hairy underneath. Broad flat flower heads to 25cm across are produced from late spring to early summer, with loose clusters of small, creamy white true flowers surrounded by larger florets, usually white but sometimes turning pink as they mature