Parthenocissus tricuspidata Parthenocissus tricuspidata
(par-then-oh-SIS-us  try-kus-pi-DAY-tuh)
Boston Ivy

It is a deciduous, broadleaf, vine. Rapid growth. Gets 50-75ft. tall and 50-75ft. wide. Likes sun to half shade. Hardy to 0 degrees.

Found in the forests in the Himalayas, E. Asia, and North America. Some species are twining, but more commonly they cling by disk-like suckers on the tips of tendrils. They are grown for their lobed or fully divided, palmate leaves, usually brightly colored in autumn. Clusters of inconspicuous flowers, with 5, sometimes 4, short, thick green petals, are produced in summer, and may be followed by dark blue or black berries. Grow through a large tree or use to cover a wall, fence, or stump. No support is required because the disk like suckers attach themselves to walls. The foliage of wall-grown plants often harbors a variety of wildlife. The berries may cause mild stomach upset if ingested.

P. tricuspidata is a vigorous, woody climber with variable, broadly ovate, deeply toothed, bright green leaves, to 8in (20cm) long, either 3-lobed or with 3 ovate leaflets, turning brillant red to purple in autumn. The leaf blades often drop off before the leaf stalks, creating a curious effect.

USDA zones 4-8

Sunset Western zones 1-24

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This page was updated on Wednesday, September 09, 2020, 07:50AM PDT
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