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.
21. Massachusetts USDA Zone Map

Photo © USDAUSDA Zones 4b through 7a represented in Massachusetts.
22. Michigan USDA Zone Map

Photo © USDAUSDA Zones 3b through 6b represented in Michigan.
23. Minnesota USDA Zone Map

Photo © USDAUSDA Zones 2a through 4b represented in Minnesota.
24. Mississippi USDA Zone Map

Photo © USDAUSDA Zones 7a through 8b represented in Mississippi.
25. Missouri USDA Zone Map

Photo © USDAUSDA Zones 4b through 7a represented in Missouri.
26. Montana USDA Zone Map

Photo © USDAUSDA Zones 3a through 4b represented in Montana.
27. Nebraska USDA Zone Map

Photo © USDAUSDA Zones 4a through 5b represented in Nebraska.
28. Nevada USDA Zone Map

Photo © USDAUSDA Zones 4b through 9b represented in Nevada.
29. New Hampshire USDA Zone Map

Photo © USDAUSDA Zones 3b through 6a represented in New Hampshire.
30. New Jersey USDA Zone Map

Photo © USDAUSDA Zones 5b through 7b represented in New Jersey