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Zanthoxylum piperitum

Zanthoxylum piperitum (Japan pepper, Hercules' Club, Prickly-ash)

is a small wide fully hardy perennial deciduous tree with green flowers in early Summer, late Spring and mid Spring. It grows well in semi-shade and direct sun, and prefers medium levels of water. It has low drought tolerance.
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It looks best in Autumn and Spring.

Food and Nutrition


The fruit of this and other species is used to make the spice Sichuan pepper.


Zanthoxylum piperitum grows in soils ranging from a pH of 5.5 (very acidic ranges from 5.2 to 5.5) to 8.5 (alkaline ranges from 8.1 to 8.5). It is adapted to chalk, clay, clay loam, loam, loamy sand, peat, sandy clay, sandy clay loam and sandy loam soils.


This is a irregular tree and has a thicket forming growth form, and has an ultimate height of 2.5m / 8.2ft and spread of 2m / 6.6ft. It can take 16-20 years to reach its ultimate height.


They are llanceolate in shape.


A moderate pleasant scent is emitted from the flower.


Borders, culinary herb, flowering shrub, herbal medicine, low maintenance and security/barrier.


Zanthoxylum piperitum has green bark with a spiky texture. Features include thorns.

Fruit and seed

The fruit is red. There is a fruit/seed abundance beginning in Autumn and ending in Autumn.


Propagation techniques include seed.


North Korea. South Korea. Japan. China.

-23°C / -9.4F 5.5 to 8.5 16-20 years 2.5m / 8.2ft 2m / 6.6ft
Scientific classifications [Edit]
Genus ? Zanthoxylum
Specific epithet ? piperitum
Common names
Japan pepper (Ireland), Hercules' Club (Ireland), Prickly-ash (Ireland)
User notes have orange headings. All other information is made up from editing attributes. IPNI details on Zanthoxylum piperitum
    References [edit] ?

    Plant added by plantdatabase

    Zanthoxylum piperitum http://plantdatabase.co.uk/Zanthoxylum_piperitum
    © Plant Database Ltd., 25th July 2014     Web: http://plantdatabase.co.uk     Email: mail@plantdatabase.co.uk
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