Cabbage Growing Guide Brassica oleracea Crop Rotation Group Brassicas (Cabbage family) ● Soil Rich, deep soil, firm with plenty of well rotted compost dug in. Position Full sun. Frost tolerant Yes. Feeding Not required if good soil. Spacing Single Plants: 50cm (1' 7") each way (minimum) Rows: 45cm (1' 5") with 55cm (1' 9") row gap (minimum) Sow and Plant In areas with cooler summers, cabbage can be sown almost all year round, except for the coldest mid winter months. In areas with hot summers, avoid sowing in the hot mid summer months. Our Garden Planner can produce a personalised calendar of when to sow, plant and harvest for your area. Notes Surround stem with a 10cm mat with a slit cut into it for the stem to prevent cabbage root fly from destroying the roots. Use fine mesh or fleece over the summer to prevent butterflies laying eggs on the underside of leaves - caterpillars can destroy these plants. Harvesting Harvest when it has formed a good sized head. Don't leave in the ground for too long otherwise it will split. Troubleshooting Heavy summer rains following dry weather can cause heads to split. Planting and Harvesting Calendar < Back to All Plants Pests which Affect Cabbage Aphid, Cabbage Aphids (General) Cabbage Moth Cabbage Root Fly Cabbage White Butterfly Cutworm Diamondback Moth Flea Beetle Slug Snail Plant Diseases which Affect Cabbage Brassica Alternaria Leaf Spot Brassica Black Rot Brassica Club Root Brassica Downy Mildew Cabbage Soft Rot