ZONE 3 Arizona, New Mexico
ZONE 4 Colorado, Nevada, Texas
ZONE 5 Arkansas, California, Idaho, Iowa, Kansas, Louisiana, Missouri, Montana, Nebraska, North Dakota, Oklahoma, South Dakota, Utah, Wyoming
ZONE 6 Alabama, Georgia, Illinois, Indiana, Kentucky, Michigan, Minnesota, Mississippi, Oregon, Tennessee, Washington, Wisconsin
ZONE 7 Florida, Maryland, New Jersey, New York, North Carolina, Ohio, Pennsylvania, South Carolina, Virginia, West Virginia, Washington DC
ZONE 8 Connecticut, Delaware, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont