Hydrangea anomala
ssp. petiolaris
var. ovalifolia
November 16, 2018

Hydrangea anomala ssp. petiolaris

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.