@Phaedra Geiermann , here we raise kale as well and let them stand with a small covering to keep the snow out of the plant. They freeze solid, which is ok; because then i will cut a frozen plant off at the ground and hang it upside down by the back door. We eat kale daily so at each lunch i step out and break off two leaves, and continue till that plant is gone.
we will eat our own kale until the beginning of February in this manner. This year we brought plants in the house one at a time and stripped off the leaves and put them in plastic storage bags and directly into the freezer; once frozen kale is quite crumbly so we just squeeze the bag down to a reasonable size and continue to use as normal, no blanching or other extra effort!
once i get over the shock of recieving what looks like 18-20 inches of snow overnight; i’ll post some pictures. Right now i’ve got a mess to clean up! And may have to shovel the roof this time?