Cold frames are ideal if you are sowing seeds, raising cuttings, or growing tender plants that will benefit from a bit of protection during the colder months. They come into their own if you don’t have space for a greenhouse, too.
Spring is a busy time for growing under glass, and using a cold frame now will allow you to get peas and beans off to an early start or harden off tender young plants, ready for the summer months. It will also extend the growing season over the autumn and winter, looking after cuttings ready for the new year and nurturing newly sown hardy annuals – for added protection through the colder months find out how to insulate your cold frame.
Whether you’re looking for wooden cold frames from sustainably sourced timber or something a little more modern, you’ll find just what you need in our pick of garden cold frames.
You might find our guide to the best potting benches helpful, as well as our round up of the best secateurs if you’re planning to propagate your plants.
10 of the best garden cold frames for plants
Browse our recommendations for garden cold frames, in a variety of sizes and mix of materials, below.
Timber Grozone Cold Frame
This ground-level cold frame box sits pretty amongst the flowerbeds. The timber frame is pressure treated to protect against rotting and the plastic panes are shatter-resistant for sturdiness and peace of mind. It also has adjustable height settings so you can fix it to a level that works for you.
Measurements: W100cm x D65cm x H40cm
Price: £59.99
Buy Timber Grozone Cold Frame from Robert Dyas
Aluminium Grozone Cold Frame
A more compact cold frame for smaller plots, this model should fit snugly into tight spaces. Fitted with a split lid, each half can be accessed or ventilated separately, the glazing is hard-wearing polycarbonate and the frame is made from lightweight aluminium so it shouldn’t be too heavy to lift up and close.
Measurements: W100cm x D56cm x H40cm
Price: £47.95
Buy Aluminium Grozone Cold Frame from Frosts Garden Centres
Timber Grozone Max
For those who need more space, this large, multi-level cold frame has plenty of room to germinate seeds and shelter plants from the elements. The polycarbonate glazing is UV-stabilised and the wooden frame is made from FSC-certified timber. For easy access and ventilation across every shelf it has double front doors and a lift-up lid.
Measurements: W69cm x D49cm x H120cm
Price: £99.99
Buy Timber Grozone Max from Look Again
Simplicity Toughened Glass Mini Cold Frame
This neat, toughened glass cold frame would work well in the corner of a patio and doesn’t take up too much room. The two safety glass windows can slide out completely or lift into preset positions to suit different stages of growth or weather conditions.
Measurements: D64 x H53cm
Price: £73.99
Buy Simplicity Toughened Glass Mini Cold Frame at Techduc
Forest Garden Mixed Softwood Cold Frame
This large cold frame has dual lids which can be propped open or closed individually. Each is fitted with a single pane of acyclic glazing, while the frame itself is made from sustainably sourced pressure treated timber and is expected to last for up to 15 years.
Measurements: W109 x D63 x H37cm.
Price: £85
Buy Forest Garden Mixed Softwood Cold Frame at B&Q
Large Pressure Treated Wooden Cold Frame
Made from pressure treated FSC certified timber, this wooden cold frame has been built to last. Two individual lids each feature a single pane of transparent acrylic and can be propped open separately to allow ventilation. A long, good sized cold frame, this would sit well in larger gardens or on allotments.
Measurements: W167 x D50 x H37.5cm
Price: £79.99
Buy Large Pressure Treated Wooden Cold Frame at Cherry Lane
Rowlinson Hardwood Cold Frame
Halls’ Hardwood cold frame features twin-walled polycarbonate glazing and has two storage shelves, offering extra room for young plants to thrive. Access, care and ventilation are provided through the front opening door or the lid, which can also be propped open. It’s guaranteed for one year.
Measurements: H80 x W60 x D61cm
Price: £119.99
Buy Rowlinson Hardwood Cold Frame from Brit Garen
Halls Aluminium Cold Frame
If you’re looking for a cold frame with a little more height, this model with its apex sliding roof is a good option. The four roof lids provide easy access from every angle and they’re glazed with panes of toughened safety glass. The frame itself is made from aluminium and steel and guaranteed for 10 years.
Measurements: H62 x W86 x D129cm
Price: £144.99
Buy Halls Aluminium Cold Frame at Halls
VidaLX Firwood Cold Frame
VidaXL’s simple, wooden cold frame offers a wide, easily accessible nurturing space. Tanalised wood gives improved weatherproofing and a single, dual window lid provides easy access to your plants. It’s guaranteed for a year.
Measurements: H45 x W46 x D90cm
Price: £52.99
