Courgettes on the plant

How to sow courgette seeds

Discover how to sow courgette seeds in this simple three-step guide.

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
At its best
At its best

Plant is not at its best in January

Plant is not at its best in February

Plant is not at its best in March

Plant is not at its best in April

Plant is not at its best in May

Plant is not at its best in June

Plant is at its best in July

Plant is at its best in August

Plant is at its best in September

Plant is not at its best in October

Plant is not at its best in November

Plant is not at its best in December

To do
To do

Do not To do in January

Do not To do in February

Do not To do in March

Do not To do in April

Do To do in May

Do not To do in June

Do not To do in July

Do not To do in August

Do not To do in September

Do not To do in October

Do not To do in November

Do not To do in December

Courgette plants are one of the last crops to be sown under cover – in a greenhouse or on a sunny windowsill. They take a week to germinate and the young seedlings soon develop their true leaves. Plant them out in the garden when after all risk of frost has passed, hardening them off first – they will grow very quickly.

You will need

  • Courgette seeds
  • Small pots
  • Multipurpose compost
  • Propagator or tray with clear plastic lid
  • Vermiculite (optional)
  • Watering can
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Step 1

Fill a pot with multipurpose compost that has been kept in the greenhouse, so that it is already warm. Firm well and press a couple of seeds, on their sides, into the compost.

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Step 2

Cover the seeds with compost or vermiculite, which is warm and free-draining and helps stop young seedlings from rotting during cool night temperatures.

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Step 3

Soak with tepid water and place in a propagator or a tray covered with a clear lid, at a temperature of 20°C.

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Protect young plants from slugs

Be sure to protect your young plants from slugs when they’re first planted outside – otherwise they may be devoured very quickly.

Slug