Hydrangea anomala ‘Petiolaris’ The self-clinging, climbing Hydrangea has attractive fresh green foliage acting as a foil for the large white flower heads that appear in early summer. A fabulous variety for more difficult north facing or shady walls or fences where this plant can make a great alternative to a conventional hedge if support can be provided. Grows 30cm per year, trim in Autumn or Spring. 15metres ultimately if untrimmed.