1a and 1b
USDA Zone 1
-60°F to -50°F average annual extreme minimum temperature band.
Open Zone guide →USDA Zone library
USDA Plant Hardiness Zone guides
Zones describe average annual extreme minimum winter temperature. For annual planting dates, pair your Zone with local freeze normals.
Find your Zone by ZIP code →2a and 2b
USDA Zone 2
-50°F to -40°F average annual extreme minimum temperature band.
Open Zone guide →3a and 3b
USDA Zone 3
-40°F to -30°F average annual extreme minimum temperature band.
Open Zone guide →4a and 4b
USDA Zone 4
-30°F to -20°F average annual extreme minimum temperature band.
Open Zone guide →5a and 5b
USDA Zone 5
-20°F to -10°F average annual extreme minimum temperature band.
Open Zone guide →6a and 6b
USDA Zone 6
-10°F to 0°F average annual extreme minimum temperature band.
Open Zone guide →7a and 7b
USDA Zone 7
0°F to 10°F average annual extreme minimum temperature band.
Open Zone guide →8a and 8b
USDA Zone 8
10°F to 20°F average annual extreme minimum temperature band.
Open Zone guide →9a and 9b
USDA Zone 9
20°F to 30°F average annual extreme minimum temperature band.
Open Zone guide →10a and 10b
USDA Zone 10
30°F to 40°F average annual extreme minimum temperature band.
Open Zone guide →11a and 11b
USDA Zone 11
40°F to 50°F average annual extreme minimum temperature band.
Open Zone guide →12a and 12b
USDA Zone 12
50°F to 60°F average annual extreme minimum temperature band.
Open Zone guide →13a and 13b
USDA Zone 13
60°F to 70°F average annual extreme minimum temperature band.
Open Zone guide →