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PlantSnap
Plant Care
Poison ivy
(Toxicodendron radicans)
Also Known As
Poison ivy, Toxicodendron, Rhus radicans
About This Plant
Toxicodendron radicans is a poisonous plant species that belongs to the Anacardiaceae family. It is commonly known as Poison Ivy and is native to North America. The plant contains a resin called urushiol, which can cause an itchy rash when it comes in contact with human skin.
Plant Care Instructions
Outdoor Size Range
Height: 1-3 ft (30-91 cm), Width: 3-6 ft (91-183 cm)
Light Requirements
Toxicodendron radicans prefers partial shade to full sun. It can tolerate shade but may not grow as vigorously.
Humidity Needs
Toxicodendron radicans prefers moderate to high humidity levels. If the air is too dry, mist the leaves with water.
Fertilizing Schedule
Toxicodendron radicans does not require fertilizer. Too much fertilizer can cause the plant to grow too quickly and become more susceptible to disease.
Pruning Guidelines
Prune the plant in late winter or early spring to control its size and shape. Wear gloves and protective clothing to avoid contact with the urushiol resin.
Common Pests and Diseases
Toxicodendron radicans is not usually affected by pests or diseases. However, it can be damaged by deer and other herbivores.
Indoor Size Range
NA
Watering Schedule
The plant prefers moist soil, but it can tolerate short periods of drought. Water the plant deeply once a week during the growing season.
Temperature Range
The plant can tolerate a wide range of temperatures, from -25°F to 110°F (-32°C to 43°C).
Growing Season
Toxicodendron radicans grows from spring to fall. It goes dormant in the winter.
Growing Difficulty Level
Toxicodendron radicans is easy to grow as long as you take precautions to avoid contact with the urushiol resin. It can be invasive in some areas and difficult to eradicate once established.
USDA Hardiness Zones
3-10
Did You Know?
Toxicodendron radicans is not actually an ivy. It is a member of the cashew family and is closely related to mangoes and pistachios.
