Poison Sumac
Toxicodendron vernix
Last reviewed: June 2026
Poison Sumac (Toxicodendron vernix) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org, last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part shade
Water
high
Size
60"–240" H × 60"–180" W
Bloom
Jun, Jul
Native to
AL, CT, DE, FL and 25 more states
Pollinators
bees, beetles, wasps
Poison sumac is a tall wetland shrub that thrives in swamps and boggy areas. This native plant produces small greenish flowers in summer followed by white berries, but all parts contain oils that cause severe skin reactions in humans.
In an HOA neighborhood
Poison Sumac takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
- Extremely toxic to humans causing severe rashes
- Liability concern for neighborhoods
- Can grow very large and unruly
Wildlife value
The flowers attract bees, beetles, and wasps, while birds feed on the white berries in fall. Despite its toxicity to humans, it provides valuable food sources for wildlife in wetland ecosystems.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does Poison Sumac fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.