Pacific Poison Oak
Toxicodendron diversilobum
Also listed as Rhus diversiloba, Rhus lobata
Also known as Poison Oak, Western Poison Oak
Climate Match for your location
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A deciduous native shrub with variable, deeply lobed leaves that turn red in fall. Highly toxic to touch—wear protective gear when handling or removing this plant.
Why grow it
Pacific poison oak serves primarily an ecological role rather than an ornamental one. It provides food and cover for wildlife, particularly birds that consume its berries, and establishes quickly in disturbed areas where other natives may struggle. In native plant restoration projects, it can be a useful pioneer species for erosion control on slopes, though it is typically chosen for functional land management rather than aesthetic or culinary purposes.
Watch out for
This plant spreads vigorously through rhizomes and seed dispersal, potentially outcompeting desirable species in a garden setting. It thrives in disturbed areas and full sun, so containment may require regular monitoring and removal of new shoots. Consider whether its presence aligns with your permaculture design goals, as many practitioners choose to exclude it entirely rather than manage it actively.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Anacardiaceae
Native to the United States
Native Range
California and western United States native
Native to: California, Nevada, Oregon, Washington
Seasonality
Bloom Season
Season of Interest
Shrub
Woody multi-stem plants at eye level.
Succession Role
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Propagation
A deciduous native shrub with variable, deeply lobed leaves that turn red in fall. Highly toxic to touch—wear protective gear when handling or removing this plant.
Climate Match for your location
See how well Pacific Poison Oak grows in your area.
Enter your ZIP code and we'll show you how this plant fits your local climate.
Why grow it
Pacific poison oak serves primarily an ecological role rather than an ornamental one. It provides food and cover for wildlife, particularly birds that consume its berries, and establishes quickly in disturbed areas where other natives may struggle. In native plant restoration projects, it can be a useful pioneer species for erosion control on slopes, though it is typically chosen for functional land management rather than aesthetic or culinary purposes.
Watch out for
This plant spreads vigorously through rhizomes and seed dispersal, potentially outcompeting desirable species in a garden setting. It thrives in disturbed areas and full sun, so containment may require regular monitoring and removal of new shoots. Consider whether its presence aligns with your permaculture design goals, as many practitioners choose to exclude it entirely rather than manage it actively.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Anacardiaceae
Native to the United States
Native Range
California and western United States native
Native to: California, Nevada, Oregon, Washington
Seasonality
Bloom Season
Season of Interest
Shrub
Woody multi-stem plants at eye level.
Succession Role
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Propagation
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