Hydrangea hirta (ex: Carlo Borsarini) - Light blue Or pink summer flowers emerge atop stems with oppositely-set green leaves. This species does appear to be Ph sensitive; blue in acid soils, pink in alkaline. Composed of constellations of refined florets set in the form of a somewhat flattened dome these are soft and lovely. Commonly called Nettle-leaved Hydrangea due the the prominent leaf serrations that resemble what else? Nettle leaves! Plant in sandy to rich fertile, moisture retaining soil in open shade, dappled to three-quarters sun. Leaves are apparently edible and eaten with rice. This worthy and seldom-seen species hales from Japan, the Himalayas, China into Taiwan. Established potted shrub from cutting.