🌿 Cabbage

Grow cabbage in fertile soil that retains moisture but is well-drained and rich in organic matter (loam is ideal). The pH should be neutral or slightly alkaline (around 6.5-7.5); acid soils should be limed before planting. Avoid waterlogging conditions - improve drainage or use raised beds on heavy soils - while keeping the root zone constantly moist. Prepare a firm, fine seedbed and incorporate compost or well-decomposed manure before planting (avoid fresh, nitrogen-rich manure just before transplanting).

Sow cabbages (Brassica oleracea Capitata Group) either in modules/seeding trays under cover, or in a prepared outdoor seedbed, then transplant to final spacing. - When to sow: Start early crops under cover in late winter or early spring; main crops in spring; winter/spring cabbages in mid to late summer for overwintering (timing varies with climate and cultivar). - Temperature/light: Germination is best in cool conditions (around 7-21°C); provide bright light after emergence to prevent the plant going limp. - How to sow: Sow finely at a depth of 0.5-1 cm in fine, firm potting soil or in a fine outdoor seedbed; keep evenly moist. - Transplanting: Transplant when seedlings have 2-4 true leaves. Plants grown under cover should harden off for 7 to 10 days before being planted outdoors. - Planting: Plant deeply until the first true leaves appear; close the soil around the roots and water well. - Spacing: Typically 30-45 cm between plants for small/early cabbages and 45-60 cm for larger/maincrop cabbages; allow 45-60 cm between rows (wider spacing for larger heads). - Location/soil: Full sun; fertile, well-drained, moisture-retaining soil. Aim for a neutral to slightly alkaline pH; lime acid soils if necessary. Incorporate well-decomposed organic matter before planting. - Maintenance: Keep soil constantly moist (mulching is useful). Protect seedlings and young plants from birds and cabbage maggot (e.g. with fine netting). If necessary, sow in succession every 2 to 4 weeks to obtain a continuous harvest.

Cabbage is a big eater. Base fertility on soil analysis; aim for a pH of around 6.0-6.8. Before planting, incorporate well-decomposed compost and apply the recommended phosphorus and potassium (it's best to apply P and K before planting, as they move slowly through the soil). Apply nitrogen regularly for rapid leaf and head growth: apply a starter fertilizer at the time of transplanting, followed by a side-dressing of nitrogen about 3-4 weeks after transplanting (or when plants are well established) and repeat about 2-3 weeks later. Nitrogen should be kept moderate as the buds approach maturity; too much nitrogen late in the season can increase cracking and delay ripening. Water after fertilization and avoid placing concentrated fertilizer directly against stems/roots.

Apply organic mulch (clean straw, shredded leaves or well-prepared compost) after transplanting, once the soil has warmed up and the plants are established. Maintain a 5-8 cm layer to conserve moisture, moderate soil temperature, suppress weeds and reduce soil splashing on leaves. Keep the mulch a few centimetres away from the stem/crown to prevent rotting and reduce pest harbourage. Monitor for slugs and snails under mulch and adjust thickness or use control measures if pressure is high; top up as mulch decomposes.

Cabbage (Brassica oleracea, Capitata group) is traditionally used as a topical leaf poultice to relieve inflammation and swelling, and to promote wound healing; chilled cabbage leaves are commonly used to relieve symptoms of breast engorgement and mastitis. As a food, cabbage is a nutrient-dense source of vitamin C and vitamin K, and provides folate and fiber. It also contains glucosinolates, which produce bioactive isothiocyanates with antioxidant and anti-inflammatory activity; higher consumption of cruciferous vegetables is associated, in observational studies, with a lower risk of certain cancers. Cabbage juice has long been used to treat symptoms of peptic ulcer disease, although clinical evidence is limited and it should not replace medical treatment.