Western poison ivy is a deciduous shrub native to western North America with three-leaflet compound leaves that turn vibrant red or orange in fall. All parts of the plant contain urushiol oil and cause severe skin reactions upon contact.
Overview
Form
Spreading
Growth Rate
moderate
Size
1–4′ tall × 2–6′ wide
Dormancy
deciduous
Tolerances & Soil
moderate
Zone 3aZone 10b
1471013
ColderWarmer
Zone range: Zone 3a to Zone 10b
Seasonality
Bloom Season
J
F
M
A
M
J
J
A
S
O
N
D
Season of Interest
SpringFall
Shrub
Woody multi-stem plants at eye level.
Succession Role
pioneerearly successional
Native to the United States
Native Range
Western North America
Native to: Montana, Wyoming, Colorado, New Mexico, Arizona, Utah, Nevada, Idaho, Oregon, Washington, California
