Anacardiaceae
Poison-ivy
Toxicodendron radicans
Also known as Three-leaved ivy, Eastern poison ivy, Toxicodendron radicans var. normale, Poison oak
Native Plants · Poison Ivy · Toxicodendron · Urushiol · Irritant · Native Vine · Wildland · Woodland · Anacardiaceae · Hazardous · Wildlife Plant
Poison-ivy is an extremely resilient, fast-spreading native plant that grows in a wide range of conditions from part shade to full sun in moist to average soils. It is not recommended for home gardens due to the severe skin irritation caused by urushiol, the oil present in all parts of the plant. If found on your property, handle with extreme caution using protective gear and consult a professional for removal.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water occasionally; established plants tolerate periods of dryness · Every 10-14 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 5.5–7
- Temperature
- -25°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 36 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alabama, Arizona, Arkansas, Bahamas, Bermuda, Connecticut, Delaware, District Of Columbia, Florida, Georgia, Guatemala, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Masachusettes
- Attracts
- Bees, Birds
Sources: trefle, usda
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