Cold frames

Extend your growing season and protect young plants with durable cold frames from D.T. Brown. Ideal for hardening off seedlings or creating a sheltered space for garden propagation, cold frames help maintain stable conditions even when the weather is less reliable.

The garden cold frame range includes a wide selection of sizes and styles, from compact 4ft and 6ft frames to lean-to wall frames for space-saving efficiency. Choose from wooden cold frames or metal grower frames, and add micromesh covers to improve ventilation while keeping pests out. With internal temperatures reaching 10–25 degrees warmer than the outside, these frames offer reliable shelter for tender plants, cuttings, and young vegetables through unpredictable spells of cold or wind.

Browse our full selection of cold frames below and give your plants the extra protection and head start they need with D.T. Brown. For more options, take a look at our greenhouses and growhouses instead.

dt-brown HARDWARE Large Overlap Garden Cold Frame

What Are Cold Frames For?

Cold frames provide a sheltered environment that protects plants from frost, wind, and other harsh weather conditions. They are commonly used to harden off seedlings raised indoors, allowing them time to adjust to outdoor conditions before being planted out. Cold frames also enable gardeners to start sowing and growing tender plants earlier in the season by retaining heat and moisture, effectively extending the growing period into cooler months. This makes them a common addition to the garden for experienced gardeners.

How to Use a Garden Cold Frame

The most important things to remember when using cold frames are managing temperature and maintaining good airflow. When installing yours, place it in a sunny, well-drained spot sheltered from strong winds to prevent too much temperature variation. When using the frame, open the lid or ventilation panels on warmer days to prevent overheating and allow fresh air to circulate, and space seedlings or cuttings so that air can flow freely between them. Keep the soil moist but not waterlogged, and close the frame fully at night or in cold weather to retain heat and protect plants from frost. Regularly inspect for pests and remove any debris to maintain a healthy environment.

Buy Cold Frames from D.T. Brown

D.T. Brown offers a selection of durable cold frames in both wooden and metal designs, suited to different garden sizes and growing needs. Each frame is designed for reliable performance and ease of use, helping you nurture plants through unpredictable weather. Order today for prompt UK delivery and our satisfaction guarantee.