How to make a cold frame

To avoid windowsills being stuffed with seedlings in spring, try a cold frame – the perfect transition spot to get plants used to the outdoors

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Choose somewhere The lid needs to be sheltered like the transparent for good base of a south- or westfacing light penetration. Glass, wall. Use bricks, acrylic or twin-walled timber or even upcycled polycarbonate are ideal, frames from old windows as they have strong to make walls. insulation properties. 3

Your frame is ready! Prop the lid open on warmer days. As well as spring seedlings, it’s also ideal for potted herbs and succulents that dislike winter wet.