American wisteria (Wisteria frutescens) and Kentucky wisteria (Wisteria macrostachya) are non-invasive wisteria varieties that'll add deep fragrance and color to your yard, and though they are native to North America, your plants may still need some help getting ready for winter. While these flowering perennials are known to survive both hot and cold weather, taking extra care of your plants in the fall will help prepare them for winter so they can thrive next spring. Kentucky wisteria is hardy in USDA zones 3 to 9, while the American wisteria tolerates zones 5 through 9. Even though these plants may be able to handle the cold winter weather, providing ground coverage, vine management, and frost protection for potted plants will ensure your wisteria isn't damaged and looks gorgeous when it blooms again.