Winter Salad Greens include arugula, bok choi, chicories, lettuce, mache, mustards and spinach. They grow slowly due to low light. Mulch well, and harvest as baby greens or braising mix.
Broccoli can survive most cool maritime winters but may not tolerate sustained freezing weather. Plant a sprouting broccoli variety for a continuous crop of side shoots throughout the winter.
Brussels sprouts are very hardy, and frost makes them sweeter. If you plant in June, they are ready to eat by November or December.
Certain carrot varieties, such as Danvers, store well in the ground. Sow in July, size them up by October, and pull them fresh in the winter.
Chard is frost-hardy and will make it through most winters. Sow from April to June for fall and winter harvest.
Collards are hardy and survive all winter in a coastal marine climate. The large leaves make good wraps.
Kale is one vegetable you can count on throughout the winter. It is easy to grow and hardy, even in freezing temperatures. The leaves become sweeter after a frost.
Leeks are a great onion substitute that grow fresh in cold weather. Slow to mature, they need to be planted in the spring for the fall and winter harvest.
Curly parsley reliably survives the cold, even on frosty days, and provides a leafy garnish. Hamburg parsley, grown for the root, can be harvested from September to March and cooked like any root vegetable.
Parsnips are similar to carrots. If well mulched, they will store well under the winter soil and provide a delicious root vegetable for roasting.
Scallions are Spanish onions that due to low winter light do not form a bulb during cold weather. Protect with mulch and pull them fresh throughout the winter.
Turnips can be a good early winter root crop. Pick them small for milder flavour. Best grown under a cloche or tunnel.