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Zanthoxylum piperitum

Common Name:
Japanese pepper
Plant Type:
Deciduous shrub
Rutaceae (The Citrus Family)
Geographic Origin:
Japan and East Asia
California Native?:
Plant Size:
To 18 feet
Landscape/Garden Uses:
Foundation plantings
Flowering Season:
Spring and summer
Flower Color:
Sun or light shade
Well-drained soil
Suggested Irrigation:
Moderate watering
Estimated Hardiness:
Hardy to 0 degrees F. or less
Erect shrub can also be grown as a small tree. Pinnate leaves are aromatic, and stems have short spines. Greenish yellow flowers in summer are followed by reddish fruits on female plants. Both male and female plants are needed to develop ripe fruits. Leaves and fruits have culinary uses. Sun to part shade, reasonably well drained soil, moderate watering.