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USDA Plant Hardiness Zone Map
Use this garden zone map to find your garden zone. It will help you when it's time to pick out plants that are suitable for growing in your climate.
The U.S. Department of Agriculture (USDA) created the Plant Hardiness Map that is used throughout the nursery industry. Use your zone number to guide you when you pick out plants for your garden.
The MapThe zone map is color coded for ease of use. There is a color key further down on the page that gives the temperature range for an area.
Map Key
Do you find the zone map and map key a little hard to decipher?
Use this handy and quick
garden zone tool. It will give you the zone when you enter your zip code.
USDA Hardiness Zones and Average Annual Minimum Temperature
Range
|
1 |
Below -50 F |
Below -45.6 C |
Fairbanks,
Alaska; Resolute, Northwest Territories (Canada) |
|
2a |
-50
to -45 F |
-42.8
to -45.5 C |
Prudhoe
Bay, Alaska; Flin Flon, Manitoba (Canada) |
|
2b |
-45
to -40 F |
-40.0
to -42.7 C |
Unalakleet,
Alaska; Pinecreek, Minnesota |
|
3a |
-40
to -35 F |
-37.3
to -39.9 C |
International
Falls, Minnesota; St. Michael, Alaska |
|
3b |
-35
to -30 F |
-34.5
to -37.2 C |
Tomahawk,
Wisconsin; Sidney, Montana |
|
4a |
-30
to -25 F |
-31.7
to -34.4 C |
Minneapolis/St.Paul,
Minnesota; Lewistown, Montana |
|
4b |
-25
to -20 F |
-28.9
to -31.6 C |
Northwood,
Iowa; Nebraska |
|
5a |
-20
to -15 F |
-26.2
to -28.8 C |
Des
Moines, Iowa; Illinois |
|
5b |
-15
to -10 F |
-23.4
to -26.1 C |
Columbia,
Missouri; Mansfield, Pennsylvania |
|
6a |
-10
to -5 F |
-20.6
to -23.3 C |
St.
Louis, Missouri; Lebanon, Pennsylvania |
|
6b |
-5
to 0 F |
-17.8
to -20.5 C |
McMinnville,
Tennessee; Branson, Missouri |
|
7a |
0
to 5 F |
-15.0
to -17.7 C |
Oklahoma
City, Oklahoma; South Boston, Virginia |
|
7b |
5
to 10 F |
-12.3
to -14.9 C |
Little
Rock, Arkansas; Griffin, Georgia |
|
8a |
10
to 15 F |
-9.5
to -12.2 C |
Tifton,
Georgia; Dallas, Texas |
|
8b |
15
to 20 F |
-6.7
to -9.4 C |
Austin,
Texas; Gainesville, Florida |
|
9a |
20
to 25 F |
-3.9
to -6.6 C |
Houston,
Texas; St. Augustine, Florida |
|
9b |
25
to 30 F |
-1.2
to -3.8 C |
Brownsville,
Texas; Fort Pierce, Florida |
|
10a |
30
to 35 F |
1.6
to -1.1 C |
Naples,
Florida; Victorville, California |
|
10b |
35
to 40 F |
4.4
to 1.7 C |
Miami,
Florida; Coral Gables, Florida |
|
11 |
above
40 F |
above
4.5 C |
Honolulu,
Hawaii; Mazatlan, Mexico |
The map can be hard to read. Here is a clickable version of the USDA Hardiness Zone Map that you can use to zero into your specific state or region. It gives you a better read on the numbers!
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Garden Quote
I consider every plant hardy until I have killed it myself.
- Sir Peter Smithers
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A green thumb is nothing more than hard work and the desire to make things grow.
