Grow courgettes and squash

Quick and easy to grow, courgettes and squash are among the most productive vegetables in the garden.


Sowing seed

Seed can be sown in pots from March to the end of May. Fill a 7.5cm (3in) pot with compost and firm gently. Sow a seed on its side 2.5cm (1in) deep and cover. Label, water and put in a propagator or on a windowsill. When roots begin to show through the bottom of the pot, put into a 12.5cm (5in) container. Plant out into growing bags, soil or a large pot in late spring or early summer. Seed can also be sown directly into the soil from late-May to early summer. Choose a sunny, sheltered spot and improve the soil by digging in some well-rotted manure or compost. Sow two seeds on their side 2.5cm (1in) deep and once the seedlings have germinated, take out the weakest one.
Looking after plants

* Plenty of water is essential, especially when the plants are in flower and then when the fruits have started to swell. Mulch to lock in moisture.
* If you dig in plenty of manure before planting, additional feeding is unnecessary on heavy, fertile soil.
* On sandy or light soil, regular drenches with a liquid feed will help boost production.


Harvesting and storage

To keep plants productive you need to harvest courgettes about three times a week at the height of the season. The correct size to pick depends on variety, but as a rule, harvest courgettes when they are 10cm (4in). Use a sharp knife to sever the fruit from the plant. Courgettes are best eaten fresh or can be stored for a few days in the fridge. Squashes are more variable in shape and size, so read the seed packet for harvesting and storage information.

Marrows are often considered to be courgettes grown large, and require the same growing conditions. When growing marrows, harvest regularly when they are 20cm (8in) long, or leave them to mature for winter use. Marrows can be stored for a long period of time if kept at a temperature between 7.5C to 10C (45F to 50F).

Quick and easy to grow, courgettes and squash are among the most productive vegetables in the garden.