
This picture is from last December when I had a huge harvest of greens for dinner. I don't live in a warm climate, rather I am able to grow many of these cold hardy vegetables because they are grown under a low tunnel throughout the colder months. This enables you to extend the growing season well beyond the typical May-October cycle. I also started raising my low tunnels to make high tunnels. This enables me to actually get into the tunnels when there is now on the ground.
Click here to watch my video on high tunnels. Whether you grow under high or low tunnels, the greenhouse plastic and row cover create an environment that is good for growing this cold tolerant plants.
You might be wondering what crops will do well in the cold. There are a couple of books by Eliot Coleman on this very subject.
Here is a rough list of what grows well in the cold.
Carrots-Mokum and Nelson varieties (shorter growing time)
Beets-Also use beet greens
Bok choy and many other choy.
Broccoli-Sante Fe can be started in summer for fall harvest
Cabbage-I like using the napa cabbage planted in August for October harvest
Collards-my spring collards continue until a hard freeze.
Endive-Can be dug up in the snow.
Green onions
Kale-My kale often makes it through till spring
Kohlrabi
Leeks – Often can make it through with no protection
Lettuce-I find the red sails and oakleaf variety does well
Mizuna-One of my favorite greens
Onions – only varieties meant to winter over in the ground
Peas-I do not have great luck
Radishes
Spinach-I have wintered this in a cold frame in a pot all winter
Swiss chard-Use bright lights for great color
Turnips-harvest greens if they do not grow well