How to Sow and Grow Cabbage: A Complete Guide
Cabbage can be harvested in almost every season when the correct variety is sown at the correct time. Spring, summer, autumn and winter cabbages are not interchangeable, so the seed packet’s schedule matters as much as the general method.
Choosing cabbage types
Spring cabbages are usually sown in late summer, summer and autumn types in late winter or spring, and storage cabbages in spring for autumn harvest. Savoy, red, pointed and round-headed cabbages vary in texture and hardiness. Choose compact cultivars where space is limited.
When and how to sow
Sow 1–2 cm deep in modules or a sheltered seedbed. Germination is best around 15–20°C. Give seedlings bright, cooler conditions after emergence and thin promptly. Avoid letting module plants become root-bound, which checks growth and can cause small heads.
Soil preparation
Cabbage needs fertile, moisture-retentive soil and full sun or light shade. Add mature compost well before planting. Brassicas prefer firm ground, so tread or press loose soil before planting. Lime acidic soil only after testing and not at the same time as fresh manure.
Planting and spacing
Harden seedlings for 7–10 days. Plant deeply up to the lowest leaves and firm each plant strongly. Small spring cabbages may be 30–40 cm apart; large winter and storage types often need 50–60 cm. Wider spacing generally produces larger heads.
Watering and feeding
Water thoroughly after planting and during dry periods, particularly as heads fill. Mulch to stabilise moisture. A balanced organic feed can be used on poor soil, but excessive nitrogen creates soft, pest-prone growth. Hoe shallowly to avoid roots.
Protecting the crop
Install fine insect-proof mesh immediately after planting, supporting it clear of leaves and sealing the edges. This protects against cabbage butterflies, pigeons and often flea beetles. Brassica collars help deter cabbage root fly.
Common problems
Cabbage caterpillars: exclude butterflies with mesh and inspect leaf undersides for eggs
Clubroot: improve drainage, raise transplants in clean compost and rotate brassicas for several years
Cabbage root fly: fit close brassica collars and use insect-proof mesh
Head splitting: keep watering steady and harvest mature heads before heavy rain
Pigeons: use strong well-supported netting that cannot trap wildlife
Harvesting and storing
Cut heads when firm, leaving a few outer leaves for protection. Summer cabbage is best used quickly; suitable autumn and winter varieties can be stored cool and ventilated after removing damaged leaves. Some spring cabbages produce small secondary shoots if the stem is left in the ground after the main head is cut.
A reliable approach
Match the variety to the intended season, transplant into firm fertile soil and protect plants from the first day. Steady moisture as heads fill prevents many quality problems.
