A cold frame is like a mini greenhouse. They are close to the ground, maximize sunlight exposure, and keep out the cold. They are used to extend growing seasons. You can start earlier in the spring and continue later into the fall. That’s a gardening win in my book! A lot of my friends use them for starting seedlings that they later transplant into the ground. They don’t have to be expensive to make and this one made from straw bales is the perfect example of that.
It’s important to note that straw is different than hay. Straw is mostly used for bedding and mulch and has no nutritional value. Hay is used for animal food. You are going to want to use straw for this project because even the highest quality hay can have weed seeds in it. Know one wants weeds popping up in their garden come spring! This Old House has another really impressive cold frame you should see… Good luck gardening!