Sow Brussels Sprout seed indoors from February in 7.5cm pots or trays of free-draining, sowing compost and cover with a thin layer of vermiculite. Place in a propagator or seal inside a plastic bag until germination. Once germinated, grow on in cooler conditions until all risk of frost has passed and plants are large enough to be transplanted. They may require potting on prior to being planted out.

Direct sow outdoors from March into a well prepared seedbed, for transplanting to their final positions later on. Sow at a depth of 13mm and distance of 30cm between rows.

Acclimatise to outdoor conditions before planting outdoors, 60cm apart, in firm, rich fertile, well drained soil. Cover with protective netting or fleece to prevent attack from birds and insects.