Toxicodendron trichocarpum
A large shrub or small tree, up to 6m high, with a spreading habit and young shoots covered with yellow-brown hairs. Leaves are pinnate, divided into up to 15 downy green leaflets, that are pink and copper when young, and turn rich orange in autumn. Upright clusters of small yellow flowers, covered with yellow-brown hairs, are produced in summer, followed on female plants by small, prickly yellowish fruits
Size
Ultimate height
4–8 metresTime to ultimate height
10–20 yearsUltimate spread
2.5–4 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Yellow | Pink Orange Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Orange | Yellow | ||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Sheltered Hardiness
H6Botanical details
- Family
- Anacardiaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Spreading branched
- Potentially harmful
- CAUTION Skin allergen causing severe dermatitis, Poisonous if eaten. Wear gloves and other protective equipment when handling
- Genus
A genus of flowering trees, shrubs and woody vines with variable green feathered foliage that can be smooth, toothed or lobed. Plants within this genus produce 'urushiol' oil which can irritate the skin
- Name status
Correct
- Plant range
- Far East
How to grow
Cultivation
Grow in moist but well-drained, moderately fertile soil, with protection from strong winds. Autumn colour is best if grown in full sun
Propagation
Propagate by seed or by semi-ripe cuttings
Suggested planting locations and garden types
- Architectural
Pruning
Minimal pruning required, see pruning group 1. Wear protective clothing to keep sap away from skin
Pests
Generally pest-free
Diseases
May be susceptible to coral spot and to verticillium wilt
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.