when to plant winter hardy leek seeds
Grow Your Own. Leeks. Leeks are a flavoursome winter vegetable that can be steamed or boiled, braised in a cheese sauce and used in soups and stews. Leeks are easy to grow, but need looking after â you need to sow them in containers or a separate part of the garden before moving them to their final position. Sow seed in spring, and you will be picking leeks from autumn to late winter.