How much space does a courgette plant need?

Bush varieties need 90cm between plants. Compact varieties manage in 60cm. Trailing types need 1.2m or can be trained up supports.

How many courgettes does one plant produce?

A healthy bush plant produces 15-20 courgettes (roughly 4 kg) over a 12-week season. Pick regularly when they are 15-20cm long.

When should I plant courgettes?

Sow indoors in April. Plant out after the last frost (late May in most of the UK). They need warm soil and are very frost-sensitive.

Can I grow courgettes in containers?

Yes. Use compact varieties in large pots (at least 45cm diameter). Keep well-watered as containers dry out quickly.

How many courgette plants do I need?

Two or three plants are enough for most families. Each plant can produce 20-30 courgettes over the season. Pick regularly when 15-20cm long for best results.

GardenCalcs

Courgette Spacing Calculator — Plants & Yields

Calculate courgette plant spacing and expected yields.

Bed Length

Bed Width

Variety Type

How We Calculate This

Plants = (Bed length / Spacing) x (Bed width / Spacing). Spacing varies by variety type.

Bush varieties: 90cm spacing, ~4 kg per plant. Compact: 60cm, ~3 kg. Trailing: 120cm, ~5 kg.

Yields assume regular picking and good growing conditions with adequate watering and feeding.

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates based on standard gardening guidelines. Results may vary with soil conditions, climate, and plant varieties.