This USDA Zone Map is provided for your convenience
and should be used only as a general guide to what will survive your
winter temperatures. There are other factors, like good drainage and normal
winters, that affect a plant's survival over the winter.
We have combined the sub zones on the
official map into just 11 zones. So 1A and 1B have the same minimum
rating on our list. 1
is the coldest and 11 is the warmest. Plants rated Zone 1 will survive the
winter in all zones. Plants rated Zone 2 will die in zone 1, but will
survive in Zones 2 through 11 and so on. To help you choose plants that
are right for your winters, we have put together a Gardening
by Zone list of all the plants in our catalog.
If you need to find which zone you are in, you may use this