One of the most important steps in choosing plants is making sure it is suited to your climate. Find your USDA zone using these state maps. You can then choose plants that are suggested for that USDA zone. Just click on the picture to see the full size map.
1. Alabama USDA Zone Map

Photo © USDAUSDA Zones 7a through 8b represented in Alabama.
2. Alaska USDA Zone Map

Photo © National ArboretumUSDA Zones 1 through 7b represented in Alaska.
3. Arizona USDA Zone Map

Photo © USDAUSDA Zones 5a through 10b represented in Arizona.
4. Arkansas USDA Zone Map

Photo © USDAUSDA Zones 6a through 8a represented in Arkansas.
5. California USDA Zone Map

Photo © USDAUSDA Zones 4b through 11 represented in California.
6. Colorado USDA Zone Map

Photo © USDAUSDA Zones 2b through 6b represented in Colorado.
7. Connecticut USDA Zone Map

Photo © USDAUSDA Zones 4b through 7a represented in Connecticut.
8. Delaware USDA Zone Map

Photo © USDAUSDA Zones 5a through 7b represented in Delaware.
9. Florida USDA Zone Map

Photo © USDAUSDA Zones 8a through 11 represented in Florida.
10. Georgia USDA Zone Map

Photo © USDAUSDA Zones 6b through 8b represented in Georgia.