Zone 1 Connecticut, Massachusetts, Maine, New Hampshire, Rhode Island, Vermont

Zone 2 New Jersey, New York, Pennsylvania

Zone 3 Delaware, Maryland, North Carolina, Virginia, West Virginia

Zone 4 Alabama, Florida, Georgia, Mississippi, South Carolina, Tennessee

Zone 5 Illinois, Indiana, Kentucky, Michigan, Ohio

Zone 6 Iowa, Minnesota, Nebraska, North Dakota, South Dakota, Wisconsin

Zone 7 Arkansas, Kansas, Louisiana, Missouri, Oklahoma, Texas

Zone 8 Arizona, Colorado, New Mexico, Utah

Zone 9 Idaho, Montana, Oregon, Washington, Wyoming

Zone 10 California, Nevada

Zone 11 Hawaii

Zone 12 Alaska