Most hydrangeas are shrubs, but climbing hydrangea (H. anomala) and their close relatives false hydrangea vine (Schizophragma hydrangeoides) are woody vines. Allow them to scramble up a tree trunk, cover a chimney or rock wall, or perk up a pergola, gate, or arbor - wherever you plant one, you'll create a stunning specimen that provides decades of beauty and enjoyment for you and all of your garden visitors.