How to Build a Cold Frame for Year-Round Gardening With a Hinged Lid, Insulation, and Seasonal Crop Timing
Build a cold frame for year-round gardening by placing a sloped, hinged-lid box in full winter sun, using insulated sides, drainage, and a transparent cover that can be vented daily. Set the back wall higher than the front so rain sheds and low sunlight reaches the plants, then fill the…