Genus Hydrangea Species anomala Cultivar 'Petiolaris' Common Name Climbing Hydrangea Patent ID Height 12 to 15 Feet Spread 12 to 15 Feet Habit Vine that clings by aerial roots. Slow to moderate growth rate. Zone 4 to 8 Culture Partial to full shade. Flower White, borne in 6-10" flat corymbs. June-July. Flower Color White. Foliage Lustrous, dark green, serrated. Yellow fall color. Deciduous. Category: Vine Description Exfoliating bark.