A fantastic plant for a shady wall, Hydrangea anomala ssp. petiolaris (the climbing hydrangea) forms a dense cover punctuated by lacy white flower heads in early summer. It takes a while to establish, but the two or three-year wait is worth it. When it does take off, it will rapidly spread and cover otherwise difficult-to-grow places. Height 301cm+. Supplied in a 3 litre pot.