New Hampshire have 7 planting zones, ranging from 3b to 6b, according to the USDA.
To find your USDA Planting Zone in New Hampshire, use the list of New Hampshire cities, towns and counties planting zones provided below.
You can also use the interactive New Hampshire Planting Zones map to visually locate your zone, or search by zip code using our convenient planting zone lookup tool.
New Hampshire Planting Zones by ZipCode
Planting Zones New Hampshire Map
Planting Zones
Planting Zones
USDA hardiness zones for New Hampshire Counties
| New Hampshire Counties | Hardiness Zones |
|---|---|
| Belknap County | Zone 5a, 5b and 6a |
| Carroll County | Zone 4b, 5a and 5b |
| Coos County | Zone 3b, 4a, 4b, 5a and 5b |
| Hillsborough County | Zone 5b and 6a |
| Merrimack County | Zone 5a, 5b and 6a |
| Rockingham County | Zone 5b, 6a and 6b |
| Strafford County | Zone 5b and 6a |
| Sullivan County | Zone 5a, 5b and 6a |
USDA hardiness zones for New Hampshire cities and towns
| New Hampshire Cities/Towns | Hardiness Zones |
|---|---|
| Alton | Zone 5b |
| Amherst | Zone 6a |
| Antrim | Zone 5b and 6a |
| Ashland | Zone 5b |
| Bartlett | Zone 5a |
| Belmont | Zone 5b |
| Bennington | Zone 5b |
| Berlin | Zone 4b, 5a and 5b |
| Bethlehem | Zone 4b and 5a |
| Blodgett Landing | Zone 5b and 6a |
| Bradford | Zone 5b |
| Bristol | Zone 5a and 5b |
| Canaan | Zone 5a |
| Center Ossipee | Zone 5a and 5b |
| Center Sandwich | Zone 5b |
| Charlestown | Zone 5b |
| Claremont | Zone 5a, 5b and 6a |
| Colebrook | Zone 4a |
| Concord | Zone 5b and 6a |
| Contoocook | Zone 5b |
| Conway | Zone 5a |
| Derry | Zone 6a |
| Dover | Zone 6a |
| Durham | Zone 6a |
| East Merrimack | Zone 6a |
| Enfield | Zone 5a |
| Epping | Zone 6a |
| Exeter | Zone 6a |
| Farmington | Zone 5b and 6a |
| Franklin | Zone 5b and 6a |
| Goffstown | Zone 6a |
| Gorham | Zone 5a |
| Greenville | Zone 6a |
| Groveton | Zone 4a and 4b |
| Hampton | Zone 6a and 6b |
| Hampton Beach | Zone 6b |
| Hancock | Zone 5b and 6a |
| Hanover | Zone 5a |
| Henniker | Zone 5b |
| Hillsborough | Zone 5b |
| Hinsdale | Zone 5b and 6a |
| Hooksett | Zone 6a |
| Hudson | Zone 6a |
| Jaffrey | Zone 5b and 6a |
| Keene | Zone 5b and 6a |
| Laconia | Zone 5b and 6a |
| Lancaster | Zone 4a and 4b |
| Lebanon | Zone 5a and 5b |
| Lisbon | Zone 4b and 5a |
| Littleton | Zone 4b and 5a |
| Londonderry | Zone 6a |
| Loudon | Zone 5b |
| Manchester | Zone 5b and 6a |
| Marlborough | Zone 5b and 6a |
| Melvin Village | Zone 5b |
| Meredith | Zone 5b |
| Milford | Zone 6a |
| Milton | Zone 5b |
| Milton Mills | Zone 5b |
| Mountain Lakes | Zone 5a |
| Nashua | Zone 6a |
| New Hampton | Zone 5b |
| New London | Zone 5b and 6a |
| Newfields | Zone 6a |
| Newport | Zone 5a, 5b and 6a |
| North Conway | Zone 5a and 5b |
| North Haverhill | Zone 4b and 5a |
| North Walpole | Zone 5b |
| North Woodstock | Zone 5a and 5b |
| Peterborough | Zone 5b and 6a |
| Pinardville | Zone 6a |
| Pittsfield | Zone 5b |
| Plainfield | Zone 5a |
| Plymouth | Zone 5a and 5b |
| Portsmouth | Zone 6a |
| Raymond | Zone 6a |
| Rochester | Zone 5b and 6a |
| Sanbornville | Zone 5b |
| Seabrook Beach | Zone 6b |
| Somersworth | Zone 6a |
| Suissevale | Zone 5b |
| Suncook | Zone 5b and 6a |
| Tilton Northfield | Zone 5b |
| Troy | Zone 5b and 6a |
| Union | Zone 5b |
| Walpole | Zone 5b and 6a |
| Warner | Zone 5b |
| West Stewartstown | Zone 4a |
| West Swanzey | Zone 5b |
| Whitefield | Zone 4b |
| Wilton | Zone 6a |
| Winchester | Zone 5b |
| Wolfeboro | Zone 5b |
| Woodsville | Zone 4b and 5a |