Agriculture
fromModern Farmer
2 weeks ago9 Crops to Sow in September
Season-extension methods like low tunnels, cold frames, and cloches enable fall and early-winter production of quick-growing crops, hardy greens, roots, and cover crops.
A cold frame consists of a bottomless box frame with a top made of glass or clear plastic that allows the sunlight in but protects plants within from cold air. According to Bronx Green-Up , you can build your cold frame to any dimensions you desire. However, their guide recommends a wooden frame that is three feet wide and four feet deep - using untreated lumber if you're planning to grow food.