Hydrangea anomala subsp. petiolarisHydrangea anomala ssp. petiolaris

  • BOTANICAL NAME: Hydrangea anomala subsp. petiolaris
  • PRONUNCIATION: hye-DRAN-ja a-NOM-a-la pet-ee-o-LAR-is
  • COMMON NAME: Climbing Hydrangea
  • FAMILY: Hydrangeaceae
  • NATIVITY: Japan, Korea, China
  • GROWTH HABIT: Clinging vine adhering to rough surfaces but extending away from surface adding a three dimensional appearance.
  • SIZE: To the extent of the support; 40' or more on a tree.
  • HARDINESS: Zone 4 - 8
  • CULTURE: Sun to partial shade; best not on a southern exposure. Prefers moist, well-drained soil.
  • LANDSCAPE USE: A vine on vertical surfaces that provides an excellent sense of depth and shadow. Can be used as a sprawling vine over rocks or walls. Slow growing.
  • FOLIAGE: Opposite, simple, serrate, broad ovate; 2-4"; possibly yellow fall color but typically green.
  • BUDS: Imbricate, 2 scaled, brown to reddish brown, glabrous.
  • BARK: Mature stems exfoliate to reveal lighter brown inner bark.
  • FLOWER: White flat clusters 6-10" in summer; with large petaled sterile flowers typically surrounding a central cluster of minimal fertile flowers.
  • FRUIT: Dry capsule, not showy.
  • PROPAGATION: Cuttings or seed.
  • PESTS: Japanese beetle.

    • 'Firefly' Miranda™ - New foliage with soft yellow margins and a medium green center. Variegation is subtle and fades with the heat of the summer.

    • 'Skylands Giant' - A local selection from Skylands, NJ, this cultivar is distinctive because of its larger, white, lacecap flower clusters and greater number of larger sterile flowers surrounding the inflorescence. Deep green summer foliage.


University of Delaware

University of Delaware Botanic GardensNewark, DE 19716Phone: 302 831-0153