Cauliflower – Walcheren Winter

The densely packed heads are 10-15cm (4-6″) in diameter on large plants and will withstand frost from -12 to -19C (16 to -5F) depending on wind and snow cover.Walcheren Winter does not start curd formation until after the winter frosts so expect to harvest in late winter to early spring.

Timing is critical: Aim to grow a plant about 15cm (6″) tall by first fall frost. Start in May through June indoors and transplant by mid-August into well-drained soil in a spot protected from wind. Space plants at 60 x 75cm (24 x 30″). In spring when they start to leaf out, sprinkle a balanced organic fertilizer around the base of each plant and lightly work it into the soil. This overwintering cauliflower was a big hit in our trials.