This article discusses the benefits of growing fruit trees in a greenhouse, even in a cold climate. It explains how greenhouse growing can provide an earlier and longer harvest period, higher quality harvest, and protection from the elements and animals. The article also offers tips for planning and preparing a greenhouse for fruit trees, including the importance of selecting the right varieties and controlling the environment. It provides a list of common fruits that can be grown in a greenhouse, such as citrus, figs, peaches, and bananas. The article suggests some specific varieties to consider, and provides information on pollination and greenhouse setup. Overall, it encourages gardeners to try growing fruit trees in a greenhouse for an extended growing season and a variety of fruit options.