Japanese Climbing Hydrangea

This subspecies of the climbing hydrangea is a refined and beautiful woody climber that uses aerial roots to attach itself to walls, fences, or trees. It is similar to H. petiolaris but often has slightly smaller, more delicate foliage and a somewhat slower growth rate initially. It produces large, flat, lacecap-like flower heads in midsummer, composed of tiny fertile flowers surrounded by a ring of larger, showy white sterile bracts. The leaves are a glossy green and turn a warm yellow in autumn. It is exceptionally useful for UK gardeners as it is one of the few climbers that will flower well in full shade and on north-facing walls. It is fully hardy (H5). Once established, it can be quite vigorous and provide a dense covering of foliage. It prefers a moist, fertile, and preferably acidic to neutral soil. Pruning should be done in late summer after flowering to keep it in check.坐平衡

Sun: Full shade to partial shade坐平衡.

Soil: Moist, well-drained soil坐平衡.

Hardiness: H5 — down to −15°C.

Flowering: Jun, Jul.