All about growing Courgettes from seed

Growing Guide

Common amongst gardeners is the plight of what to do each summer with all their Courgettes! They will usually fruit for many months, from early summer, sometimes through to the first frost. Pick the courgettes when they’re young and tasty, 10–12.5cm long. Regular harvesting, when the fruits are small, will encourage more to form.

Sow courgette seed indoors in March and April for transplanting later on, or direct sow outdoors from late May to June.

Sow seed at a depth of 2cm in 7.5cm pots of free-draining compost. Place in a propagator or seal container inside a plastic bag until germination. Do not exclude light, as this helps germination. Once germinated, grow on in cooler conditions until all risk of frost has passed and plants are large enough to be transplanted. Gradually acclimatise them to outdoor conditions before planting outdoors in rich fertile, well drained soil in full sun at a distance of 90cm apart, or into large containers or grow bags.

  • Key Information

    Height: to 45cm

    Spread: to 90cm

    Half-hardy annual

    Full sun

    Germination: 7 - 10 days

    Harvest: from 12 weeks

  • Sowing & Growing Schedule

    Sow Indoors: March to April

    Sow Outdoors: May to June

    Plant Out: May to June

    Harvest: July to September

  • Varieties we recommend

    Atena Polka F1

    All Green Bush

    Darko F1

    One Ball F1

Top Tip

A thick mulch of organic matter spread around the plants will help to conserve moisture at the roots.

Courgette plants usually fruit for many months, from early summer, sometimes through to the first frost. Pick the courgettes when they’re young and tasty, 10–12.5cm long. Regular harvesting, when the fruits are small, will encourage more to form.

Tromboncino will benefit from being able to climb up a structure, but are equally happy growing along the ground.