A sunny site with fertile soil.
Cabbages need a sunny site with deep, firm, moisture retentive soil. Add plenty of compost or organic matter before planting.
Plant in raised beds & traditional plots
Cabbage is better grown in raised beds or a well dug traditional veg patch. You could grow them in a grow bag too, 3 to a bag.
How far apart?
Firm in well
When you plant your cabbages, be sure to firm them in well by pressing the soil down around the base of the plants.
Protect with a brassica collar
You can make these easily out of cardboard. Cut a 10cm diameter disc, cut into the centre and make a slit so that you can pop it around the base of the plant. This is to prevent cabbage root fly larvae from hatching by the base of the plant and burying under the soil to eat the roots.
Net against pigeons & butterflies
Pigeons love brassica plants and will easily destroy a crop of young plants in a morning. Meanwhile, cabbage white butterflies are attracted to brassicas and lay eggs on the leaves. When the eggs hatch, the caterpillars are quick to nibble away the leaves and strip the plant bare. To protect against both these pests, cover plants with fine mesh netting or horticultural fleece.
Keep soil moist
As weather warms up it is important to keep cabbages cool and to give them enough water. Try to keep the soil consistently moist rather than allowing it to dry out. During dry spells, water well, once or twice a week.
When to harvest
Harvest as required once the cabbage is fully mature. In cold weather you can leave them in the ground until you want them.