Poison Ivy
Toxicodendron radicans
A woody vine or shrub known for its compound leaves typically featuring three leaflets, which can vary in shape from smooth-edged to toothed or lobed.
- Light
- Full sun to partial shade, adapting well to woodland edges and open areas.
- Water
- Moderate moisture requirements once established, displaying good drought tolerance.
- Growth
- Perennial woody vine or low shrub, growing either as a ground cover or climbing high via aerial rootlets, with a variable spread.
Care instructions
This is a wild species typically not cultivated in gardens. It thrives in various light conditions and adapts to diverse soil types without human intervention.
Growing details
Sunlight
Full sun to partial shade, adapting well to woodland edges and open areas.
Watering
Moderate moisture requirements once established, displaying good drought tolerance.
Soil
Prefers well-draining soils and adapts to a wide range of soil pH levels.
Hardiness zone
USDA zones 3 through 9
Growth habit
Perennial woody vine or low shrub, growing either as a ground cover or climbing high via aerial rootlets, with a variable spread.
Bloom season
Small greenish-white flowers appear in spring, followed by whitish-yellow drupes.
Propagation
Propagates naturally primarily through seeds spread by wildlife and through underground rhizomes.
Common pests & issues
Generally resistant to major pests and diseases due to its robust natural growth habit.
Similar species
Boxelder and Virginia creeper; boxelder has three leaflets but features opposite branching, while Virginia creeper typically has five leaflets.