Japanese Climbing Hydrangea 'Roseum'

Hydrangea hydrangeoides 'Roseum' (formerly classified as Schizophragma) is a sophisticated choice for a north or east-facing wall. This self-clinging deciduous climber uses aerial roots to attach itself to masonry. It is distinguished by its large, lacecap-like flower heads which feature sterile outer bracts that age to a soft, dusky rose-pink—a rare trait among climbing hydrangeas. The heart-shaped, dark green leaves provide a lush backdrop and often turn a pleasant yellow in the autumn before falling. While it can be slow to establish, once settled it is a vigorous and reliable plant. In the UK, it is fully hardy but appreciates a site protected from harsh, drying winds. It prefers a moisture-retentive, humus-rich soil and, unlike many other climbers, thrives in shaded conditions, making it invaluable for brightening up darker corners of the garden. It requires minimal pruning, typically just to keep it within its allotted space.

Sun: Partial shade to full shade.

Soil: Rich, moist but well-drained soil.

Hardiness: H5 — down to −15°C.

Flowering: Jul, Aug.