Courgette - Cucurbita pepo
Courgette or as sometimes referred to as zucchini. Sow in pots indoors in April, planting 2 seeds per 75cm (3in) pot, push seeds into the compost sideways to reduce the chance of them rotting. They need gentle heat to germinate, so put them on a warm windowsill. Remove the weaker seedling after they have produced their first pair of true leaves. In early May, transplant outside where they are to grow, spacing the plants 24-36cm (2-3ft) apart so they have a chance to spread out. The end of May is the ideal time to direct sow seed outside. Keep plants well watered, try not to get developing courgettes wet as this can increase the chance of them rotting on the plant.
They like warm, moist, very rich soil in a sunny position.
Start harvesting courgettes from mid-June, when they are small, to encourage further production. If you miss collecting any they will grow into marrows, which can still be harvested and eaten.
Culinary use:
Courgettes have a high water content so they don't freeze very well. If you have a glut of them, make ribbons with a peeler or spiralising them into salads, stir fries, homemade burgers, lasagne or grate them and add to a cake mixture.
Cultivars and varieties:
Cucurbita pepo 'Afrodite'
Cucurbita pepo 'Defender' - A good cropping courgette with mildew resistance.
Cucurbita pepo 'Gold Rush' - A yellow skinned variety.
Cucurbita pepo 'Piccolo'
Cucurbita pepo 'Summer Ball' - A round, yellow-skinned variety.
Cucurbita pepo 'Tuscany' - A variety that produces a large crop and has a good resistance to mildew. It's been especially bred to cope with the UK climate.
Cucurbita pepo 'Zucchini'
Cucurbita pepo var. giromontina 'All Green Bush'
Seeds to sow now:
Indoors or in a heated greenhouse
Ageratum
Aubergine
Bell pepper, Pepper, Sweet pepper
Cardoon
Celeriac
Celery
Columbine
Coriander
Cress
Floss flower, Ageratum
Forget-me-not
Ornamental pepper
Pepper
Outside
Antwerp hollyhock, Fig-leaved hollyhock, Hollyhock
Aubretia, Rock cress, Aubrieta, Aubrietia
Beetroot
Beetroot, Garden beet
Borecole, Kale
Bristly hollyhock
Broccoli
Brussels sprout
Cabbage
Carrot
Cauliflower
Kohl rabi
Normandy sorrel
Onion
Ornamental winter kale
Radish
Spinach
Spinach, Summer spinach
Spring onion
Sweet pea
Sweetcorn
Turnip
Outside under cover
Brussels sprout
French marigold
Marrow
Onion
Snapdragon
Sweetcorn
What else to plant now:
Roses (bare rooted)