Climbing Hydrangea VinesClimbing Hydrangea Vines for Sale Online Climbing Hydrangea Vines (Hydrangea anomala petiolaris) are a unique departure from the standard hydrangea. Large, fragrant clusters of creamy white flowers pop out of this twisting vine in May and June and are very attractive to wandering butterflies. No trellis is needed to grow this climbing vine, as it has the ability to cling to a concrete wall, tree, or almost any surface using its aerial rootlets. The