A cold frame hoop house is a raised wooden bed with curved metal supports covered with clear plastic sheeting to allow sunlight to reach young plants of radishes, beets, arugula, kales and more in a sunny December garden.

What to Plant in Cold Frames and Hoop Houses in December

Your December cold frame, hoop house, or covered row produces all kinds of crops as long as you achieve the right internal temperature. Pop in cold-hardy crops and get ready to harvest throughout the chilly months.

Modern Farmer