UK gardeners can harvest 20-30 courgettes per plant between July and October by sowing indoors in April and planting out after the last frost in late May. Plants need 90cm spacing, full sun, and weekly high-potash feed from flowering. Harvest at 15-20cm for the best flavour and to keep plants producing. Two to three plants supply a family of four.
Key takeaways
- Each healthy plant produces 20-30 courgettes over the season from July to October
- Sow indoors in April and plant out after the last frost, usually late May in most of the UK
- Space plants 90cm apart in rich, moisture-retentive soil with full sun
- Feed weekly with high-potash liquid fertiliser from first flower for maximum fruit set
- Harvest at 15-20cm long every 2-3 days to keep plants producing new fruit
- Hand-pollinate in cool or wet summers when bees are scarce to prevent fruit rotting
courgettes vegetables grow your own container growing summer crops
Our team produces practical UK gardening guidance from source research, contributor records and established horticultural practice. Editorial standards are overseen by Matt W.
