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Courgette and marrow

These highly productive plants in the cucurbit family are easy to grow from seed. Just two plants will provide a family with fruit all summer long.
Growing calendar
Sow indoors April
Plant out May-June
Harvest Mid Jul-mid Oct

How to grow courgettes and marrows

Sow courgette and marrow seeds on their side indoors, at 20C, in pots of warm, peat-free compost, 1.5cm deep. Harden off and transplant your courgette plants outside when large enough to handle, 60-90cm apart - and all risk of frost has passed.

Alternatively, you can sow direct outdoors in May or June. Choose fertile soil and a sunny, sheltered site. They don't like the wind and are hungry plants so add plenty of well rotted compost to the planting area prior to planting.

Pinch out growing tops to trailing stems when 60cm long to put the energy back into the fruit.

Harvesting and using courgettes and marrows

Cut (not pull) 10cm long courgettes, and 20cm long marrows. Leave marrows for longer to produce a tougher skin if storing. Keep picking for more fruit. They can be fried, steamed or grilled. Flowers are also edible.

Tips for growing courgettes and marrows

  • Slugs love courgettes and marrows so they will need some protection.
  • Keep well watered during hot weather, and mulch to conserve moisture.
  • Put marrows on a tile or similar surface to stop rotting.
  • Feed twice monthly with a comfrey liquid feed for bumber crops.

Head to our seed saving guide for more information on saving seeds from cucurbits.

Growing notes
Difficulty Easy
Germination time 5-8 days
Average time to harvest 10-14 weeks
Equipment needed Mulch (e.g. homemade compost), tiles
Average plant size 45cm tall, 120cm wide
Family group to grow with Cucurbits: pumpkin, squash
Key nutritional content Vitamin C, folate
Seed saving notes Annual, can cross pollinate