Hydrangea anomala ssp. petiolaris is slow to get established, but will then vigorously climb any support or spread as a ground cover. Ideal for growing along walls or fences by gripping surfaces with strong adventitious roots. Produces masses of lacy flowers.
Inflorescence: The corymb is of irregular shape, up to 220mm across, opening white.
synonym: Hydrangea petiolaris
Philipp von Siebold introduced this hydrangea from Japan in 1862.
Zones: 4 to 9
Size: Will grow to fill the available space.
Color in neutral soil:
Color in acidic soil with AI present:
White (no change)
Ray florets: 4 to 5 sepals, entire, overlapping, 40mm diam.
Leaves: Orbicularly ovate, mid-green, leathery, serrate with long petioles, 125mm l x 95mm w.
H. anomala ssp. petiolaris at the Elizabeth Carey Miller Botanical Garden in Washington, USA.
H. anomala ssp. petiolaris at Heritage Hydrangeas, BC, Canada.