When the seedlings are large enough to handle thin out to 23-30cm (9-12in) apart. Keep the soil moist and the plants growing well to prevent premature running to seed (bolting).
Plants need some shade in hot weather to prevent the leaves from becoming tough and unpalatable.
Keep crops weed free and the soil moist. Do not over water as this dilutes the taste.
Flea beetle: Leaves are peppered with small holes, damaged areas turn brown. Seedlings are particularly susceptible.
Remedy: Grow plants under horticultural fleece, keep the soil moist.
More information on flea beetle
Bolting: Crops start to flower and produce seeds prematurely, making the leaves unusable. This short lived crop will always flower at an early stage but avoiding dry soil can help.
Remedy: Keep the soil or compost in pots moist, especially during hot, dry spells. A temporary shade screen or shading material will help during very sunny weather.
More information on bolting
Harvest from four weeks after sowing - regular picking keeps growth young, tender and tasty.
Treat plants as ‘cut-and-come-again’ crop or pick a few leaves from plants over the whole row. Picking lots of leaves from one or two plants, weakens the growth.
As flower buds appear, pinch them out to prolong cropping, unless you want the plants to set seed – they can be used as a garnish for salads, too.
An unusual combination that makes a delicious dish such as this roasted squash, sheep’s cheese and hazelnut salad, will keep the vegetarians in your life happy.
‘Apollo’: A tasty, fast growing form.
‘Runway’: Is fast growing.
‘Sky Rocket’: Combines the flavour of wild rocket with speed of growth.