I found that thru the winter I fed my DT Spring mix reinforced w/mustard greens, collards, turnip grees and kale...he ate it good...My DT had to stay up all last winter because he was sick, and as Mark said, no leaves, no weeds…Fortunately, I had a good variety of dried stuff from kapidolo and made him lettuce wraps every day with romaine. He wintered well.