Plant hardiness zone map
This plant hardiness zone map is from the USDA agricultural research service. You can see by this map what temperature zone you live in and it will help you to determine the flowers, plants and trees that have the best chance of surviving your winter. Most of the individual plant pages on this web site have a reference to that plant's hardiness zone. You can refer back to this map to see if that plant can survive the temperatures where you live.
