Pronunciation/kəʊld freɪm/ General Description A cold frame is a simple structure used in gardening to protect plants from cold temperatures, wind, and frost. Typically constructed from a transparent lid or cover placed over a low box, it functions like a mini-greenhouse, extending the growing season and allowing for early planting. Detailed Description Cold frames are usually made of materials such as wood, plastic, or bricks for the frame, with a lid of glass, acrylic, or clear plastic that allows sunlight to penetrate while retaining warmth. They are placed directly on the soil and are used to harden off seedlings, overwinter…