Leafy shrub that loves hot humid conditions but goes dormant in winter.
Other Names: Tropical asparagus, Chang Kok, Star gooseberry, Katuk
Origin: Tropical and Sub-Tropical Asia
Size: 2-5m high, 1-2m spread
Growing conditions: full sun to partial shade
Harvest: all year
Propagation: from semi-hard cuttings or seeds
Growing tips: Sweet leaf will grow in most soils, including acidic and heavy clay soils. It tolerates high rainfall as well as dry conditions. Growth is prolific in the warmer months and slows down or goes dormant in winter. Fertilise regularly and mulch to retain soil moisture.
Use: Sweetleaf is used extensively in cooking in East Asia as the leaves taste like fresh peas, with a nutty flavour. Leaves can be added to salads, sandwiches, scrambled eggs, tossed in curries, dips, casseroles, stir-fries or used as a garnish. Consuming large quantities of raw plant material can cause serious lung damage so cooking is mostly recommended.
An extract made from the plant has been found to have strong activity against pine-wood nematodes and may have use against other species.
Availability in shop: summer