Coldframe

You might think that the growing season has a finite beginning and end: the last frost in spring and the first frost in fall. But, in fact, many gardeners try to start planting and harvesting when frost still threatens. With a simple coldframe, you can extend your season by a month or more on either end—in some climates, you can grow right through the winter with one. A coldframe is an ideal place to gradually acclimate tomato or pepper seedlings grown indoors to conditions outside.