About
Parthenocissus tricuspidata, Boston ivy, is a very vigorous, self-clinging, large deciduous climber with mostly ovate or three-lobed, glossy leaves turning brilliant crimson and purple in autumn. Flowers are inconspicuous; berries are dull blue. An outstanding climber for covering large walls and buildings, especially for dramatic autumn colour.
About the genus
Parthenocissus are vigorous, deciduous climbers with either tendrils or disc-like adhesive pads and lobed or palmate leaves that colour brilliantly in autumn. Excellent plants for covering walls, fences and large trees.
Growing conditions
SunlightFull shade, Full sun, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, East-facing, North-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH5
Plant details
Plant typeClimber Wall Shrub
HabitClimbing
FoliageDeciduous
HeightHigher than 12 metres
Spreadwider than 8 metres
Time to full height5-10 years
Suggested usesWildlife gardens
Native toChina, Japan
ToxicityHarmful if eaten, skin irritant. Wear gloves and other protective equipment when handling Pets: Harmful if eaten, skin irritant - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Care notes
CultivationFor the best autumn colour, site in partial shade or full shade. It thrives in any fertile, well-drained soil
PruningPruning group 11 in early winter, can also be cut back in summer if need be
PropagationPropagate by layering or hardwood cuttings
Pest resistanceMay be susceptible to glasshouse red spider mite and vine weevil
Disease resistanceMay be susceptible to honey fungus