broccoli (purple sprouting) 'Cardinal'

Grow in fertile, well-drained soil in full sun or very light shade. Where possible, avoid growing brassicas in the same soil year on year, to prevent the build up of soil-borne diseases. See the Grow Your Own guide to broccoli for more detailed advice

Harvest when heads are well formed and tight, before flowers begin to open

May be susceptible to cabbage root fly, caterpillars, cabbage whitefly and mealy cabbage aphid

May be susceptible to club root, brassica downy mildew, brassica white blister and powdery mildews