Building A Cinder Block House – Cold frames allow you to set up garden plants sooner in the spring or you can use the framework to continue the cultivation of cold season plants well into winter. The cold frame consists of a box with a transparent lid that opens and closes. The plants that rest within the cold frame or are planted in the ground inside the frame. The sun shines through the glass or plastic lid, which rises to ventilate the hot air on the hottest days. Use concrete blocks to create a permanent cold frame in your garden and take advantage of its ability to extend the season.
Remove 8 inches off the ground in an area of 6 feet by 3. Choose an area that receives full sun in early spring and winter, and is close to your home so you can easily access the cold frame during inclement weather. Adjust the concrete blocks just inside the perimeter of the excavated area, creating the cold frame wall. Place the blocks so that the holes in the center of the blocks face up, where appropriate. Place the side blocks side by side so that they touch each other. Place the second row of blocks on top of the first, so that the seam where two blocks are in the first-row overlap.
Place the extracted earth in the box of a cold frame. If you are planting directly on the ground, add all the desired modifications such as compost or fertilizer. Set a sheet of clear glass or plastic on top of the cold frame, like an old window or storm door. Prop open glass on warm days by placing bricks or blocks of wood between the glass and the cold frame picture.