For sweet, crisp carrots all winter, we always left them in the ground under a thick layer of leaves or straw to keep them from freezing. But digging carrots in midwinter was not my idea of fun.
I wanted a better way to store the carrots, so I made a miniature root cellar right in the garden. First, I cut the bottom from a 5-gallon bucket. Then I dug a bucket-size hole in the ground just deep enough so the top of it was flush with the ground. I filled the bucket with just-dug carrots, placed the lid on the bucket and plopped a bale of straw on top for insulation.
My winter carrots stay sweet and crisp — just as they did in the ground.