If your plant is bonsai, Hawthorn tree or a small potted tree, it must spend the winter outdoors. It will die if you try to keep it in the house in winter. If it is a bonsai, I suggest you visit a garden center that specializes in these plants and ask their advice as to how overwinter them. A potted tree can be planted outdoors in a protected area and removed from the soil in spring. If the label has a website, go to the website and look for information or a contact number to call for more information. Happy Yardening, Nancy.