Plant Hardiness Gardening Zone Map for the Northeast US
Garden planting zones 2A through 7B
Connecticut, Delaware, District of Columbia,Illinois, Indiana, Kentucky, Maine, Maryland,Massachusetts, Michigan, New Hampshire,New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia
The 2003 US National Arboretum "Web Version" of the 1990 USDA Plant Hardiness Zone Map
