| Plant
Hardiness Zone Map
This information is from the US National Arboretum
web site. That's a good site too for helpful tips.
Here's a
link to their site. I especially like
the gardening page.
Check
the color of the section in your area of the map with
the color key below.
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 |
|
