An old window works perfectly as a lid, but you can also use Plexiglas or plastic sheeting tacked to a frame. Here is the illustration from Eliot’s book and a picture from the book of a cold frame in ...

Temperatures in a cold frame are typically around 5°F to 10°F higher than those outside the box, helping to create a controlled microclimate. One side of the frame is usually higher than the ...

Cold frames are simple unheated structures that use solar energy and insulation to create a micro-climate. These warmer conditions allow to expand growing season in spring and fall. Our six cold ...