: Your cold frame should face South (in the Northern Hemisphere) to maximize light exposure. Avoid placing it against a South-facing wall in the summer, as it may overheat. 3. Buying vs. DIY

When shopping for a cold frame, prioritize these design elements to ensure your plants thrive:

: Low maintenance and lightweight, though it provides less insulation than thick wood. 2. Size and Orientation

: Offers the best light transmission and durability but is heavy and breakable.

The Ultimate Guide to Buying Your First Cold Frame Want to start your garden weeks before the last frost or keep harvesting fresh greens into December? Buying a cold frame is one of the smartest investments a gardener can make. Essentially a "mini-greenhouse" that sits right on the ground, a cold frame uses passive solar energy to protect plants from wind and freezing temperatures.