Zanthoxylum schinifolium

Szechuan pepper. A very aromatic shrub from China and Japan growing to abut 4 m (13 ft) at most. The leaves can be used as a flavouring, but the main use is the pink fruits, which are used a spice (peppery and fragrant) – grown commercially as a spice crop in Asia. Self fertile, crops within 3 years. Grows well in any reasonable soil in sun or light shade; hardy to -20ºC.