Sow seeds in spring in a good seed compost, just covering the seed with compost. Germination usually takes 14-21 days at 19-21C (65-70F).
Transplant the seedlings when large enough to handle planting 4 seedlings in each 7.5cm (3in) pot. When well rooted move to a cold frame and plant out 20cm (8in) apart. Plant each potful so the soil level in the pot is about 5cm (2in) below the ground.
For best results plant in a sunny spot in rich fertile, well drained soil. The following spring draw up the soil around the plants and a first cut can be made 3-4 weeks later. 2 or 3 more cuts can be made or the leaves can be picked occasionally throughout the