How to prune pak choi 'joi choi'

Harvest from 4 weeks (outer leaves) or at full maturity around 50–60 days. Snap or cut outer leaves cleanly from the base, leaving the central crown. Alternatively, cut the whole head 1 inch above the soil line. Remove any yellowing or damaged outer leaves promptly to improve air circulation and discourage pests.

As needed (harvest management, not ornamental pruning). Pak Choi 'Joi Choi' is a leafy crop harvested rather than pruned. Pick outer leaves as needed from about 4 weeks, or cut the whole plant at 50–60 days. If it starts to bolt, harvest the entire plant immediately — bolted leaves become bitter and the plant will not recover for further harvest.

Snap or cut outer leaves cleanly from the base, leaving the central crown. Alternatively, cut the whole head 1 inch above the soil line. Remove any yellowing or damaged outer leaves promptly to improve air circulation and discourage pests.