Zanthoxylum simulans
Sichuan pepper
A bushy, spiny, medium to large deciduous shrub or small tree. The ash-like leaves are up to 8cm long with up to 11 broad leaflets. Flat-topped sprays of small, yellow-green flowers are produced in early summer, followed by open clusters of small, red fruits that split open to reveal black seeds. Leaves, bark and fruit are all aromatic
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Size
Ultimate height
2.5–4 metresTime to ultimate height
10–20 yearsUltimate spread
2.5–4 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Green Yellow | Green | ||
| Autumn | Green | Black Red | ||
| Winter |
Position
- Full sun
Aspect
West–facing or South–facing or East–facing
Exposure
Sheltered Hardiness
H6Botanical details
- Family
- Rutaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Potentially harmful
- Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling
- Genus
Zanthoxylum are broadly rounded to upright, spiny, deciduous or evergreen trees and shrubs. They have aromatic bark and leaves. Sprays of small green or yellow-green flowers appear in spring or summer, followed by small fruits that split to reveal seeds attached by short threads
- Name status
Correct
- Plant range
- China, Taiwan, Korea
How to grow
Cultivation
Grow in fertile, well-drained soil in full sun or light, dappled shade
Propagation
Propagate by seed, or root semi-ripe cuttings in midsummer with bottom heat, or take root cuttings in late winter
Suggested planting locations and garden types
- Cottage and informal garden
- Patio and container plants
- City and courtyard gardens
- Low Maintenance
- Flower borders and beds
Pruning
Pests
Generally pest-free
Diseases
Generally disease-free
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