| |
 |
HARDINESS ZONES |
|
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 |
|
1
|
above
40 F
|
above
4.5 C
|
Honolulu, Hawaii; Mazatlan, Mexico |
|
Hardiness rating developed under the context of
the Average Minimum temperature that a plant can survive. Please check all of
your Saunders Brothers plant material for this rating. Ratings not found on
plant material can be found here on our web. Major cities that are covered by Saunders
Brothers plant material are Richmond, VA (Zone 7), Washington, D.C. (Zone 6),
Eastern Shore Virginia-Maryland (Zone 7-8), Pittsburgh, PA (Zone 5-6), Western
Maryland (Zone 6) and Charlottesville, VA (Zone 6). For other cities, see map. |
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