Flower Culture #2: Hotbeds and Coldframes

Hotbeds and coldframes are boxes in which you would put plants that you want to prepare for the great outdoors. A hotbed has an electric wire running through it to keep the plants warm. However, a coldframe does not have this ability. For a coldframe you have to pile dirt or mulch around it. On both of them however when it gets hot you a have to open it a little ways. The hotter it is outside, more open it should be.