Direct sow thinly outdoors at a depth of 1.5cm from April into a well prepared bed, or in modules for transplanting to their final positions in June. Allow 40cm between rows. Once transplanted, cover the crop with horticultural fleece to provide a barrier to airborne pests, such as flea beetles.

Sow from April for baby leaf, June onwards for full-size plants. For 'baby leaf', pick a few leaves from each plant when 5cm tall, then allow to regrow for up to four pickings. Harvest unthinned as baby leaves, or thin out seedlings or plant out modules at 25cm apart to produce mature plants. Pak choi is most succulent and has the best flavour when eaten fresh from the plot, so only harvest what you need, when you need it.