Pacific Poison Oak

Toxicodendron diversilobum

Native to:
Canada, Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Anacardiaceae
Genus:
Toxicodendron
Species:
Toxicodendron diversilobum
USDA Symbol:
TODI

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Vine
Height:
400 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
apr,may,jun
Bloom Colors:
white

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★★☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Caloptilia diversilobiella

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Deer Resistant:
Yes
Fall Color:
red, orange
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from root crowns after fire; seeds also germinate in post-fire conditions.

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
4.5 - 7.5 (acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
adaptable to various soil types in native range

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Scarification:
Seed coat scarification required before sowing
Germination Time:
30–90 days
Notes:
Seeds require scarification (nicking or hot water) followed by cold stratification for 30-60 days.

Where to Buy

Nationwide Seller