Banana plants, a staple of tropical gardens, are at risk of severe damage or death during freezing temperatures. In North Texas and other areas prone to extreme cold, the roots of banana plants may not survive the winter without proper protection. Ornamental banana varieties are particularly vulnerable, as they are less tolerant of cold and lose additional hardiness when grown in pots. Without adequate precautions, gardeners may face the loss of these plants, which could require replanting in the spring.