Start sowing Cabbage Dutchman F1 seeds from February to May.
Early sowings of dutchman cabbage seeds can be made in trays or modules under glass at 13°C. Later seed sowings can be made into a seed bed in shallow drills 2cm deep in short rows.
As soon as glasshouse seedlings show their first pair of leaves, prick off into trays 5cm (2″) apart or thin modules to one seedling per cell.
Gradually harden off before planting out, spacing plants 30cm apart between cabbage plants and 30-38cm between the rows. Outdoor sowings of dutchman should be thinned to 7-10cm apart, then once plants are 15cm (6in) tall, they can be lifted and transplanted to their final planting positions.
June to September