US Planting Zones

Complete US Planting Guide

Your comprehensive guide to planting zones, seasonal calendars, and crop recommendations for successful gardening across the United States.

Zone 1a

Lowest Temperature Range:

-60°F to -55°F

Regions:

Alaska (interior)

Growing Season:

Very short (60-90 days)

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Zone 1b

Lowest Temperature Range:

-55°F to -50°F

Regions:

Alaska (interior)

Growing Season:

Very short (60-90 days)

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Zone 2a

Lowest Temperature Range:

-50°F to -45°F

Regions:

Alaska (some coastal)

Growing Season:

Short (90-120 days)

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Zone 2b

Lowest Temperature Range:

-45°F to -40°F

Regions:

Alaska (some coastal)

Growing Season:

Short (90-120 days)

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Zone 3a

Lowest Temperature Range:

-40°F to -35°F

Regions:

Minnesota, Montana, North Dakota

Growing Season:

Short (120-150 days)

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Zone 3b

Lowest Temperature Range:

-35°F to -30°F

Regions:

Minnesota, Montana, Maine

Growing Season:

Short (120-150 days)

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Zone 4a

Lowest Temperature Range:

-30°F to -25°F

Regions:

Wisconsin, Vermont, Wyoming

Growing Season:

Moderate (150-180 days)

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Zone 4b

Lowest Temperature Range:

-25°F to -20°F

Regions:

Vermont, Wyoming, Idaho

Growing Season:

Moderate (150-180 days)

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Zone 5a

Lowest Temperature Range:

-20°F to -15°F

Regions:

Illinois, Indiana, Ohio

Growing Season:

Moderate (180-210 days)

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Zone 5b

Lowest Temperature Range:

-15°F to -10°F

Regions:

New York, Pennsylvania, Ohio

Growing Season:

Moderate (180-210 days)

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Zone 6a

Lowest Temperature Range:

-10°F to -5°F

Regions:

Kansas, Missouri, Kentucky

Growing Season:

Long (210-240 days)

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Zone 6b

Lowest Temperature Range:

-5°F to 0°F

Regions:

Virginia, Maryland, Kentucky

Growing Season:

Long (210-240 days)

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Zone 7a

Lowest Temperature Range:

0°F to 5°F

Regions:

Oklahoma, Arkansas, Tennessee

Growing Season:

Long (240-270 days)

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Zone 7b

Lowest Temperature Range:

5°F to 10°F

Regions:

Tennessee, North Carolina, Arkansas

Growing Season:

Long (240-270 days)

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Zone 8a

Lowest Temperature Range:

10°F to 15°F

Regions:

Texas, Georgia, parts of Pacific Northwest

Growing Season:

Very long (270-300 days)

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Zone 8b

Lowest Temperature Range:

15°F to 20°F

Regions:

South Carolina, coastal Georgia, Texas

Growing Season:

Very long (270-300 days)

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Zone 9a

Lowest Temperature Range:

20°F to 25°F

Regions:

Florida, Southern Texas, Southern California

Growing Season:

Year-round possible

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Zone 9b

Lowest Temperature Range:

25°F to 30°F

Regions:

Central Florida, Arizona, Southern California

Growing Season:

Year-round possible

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Zone 10a

Lowest Temperature Range:

30°F to 35°F

Regions:

South Florida, Southern California coast

Growing Season:

Year-round

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Zone 10b

Lowest Temperature Range:

35°F to 40°F

Regions:

South Florida, Southern California

Growing Season:

Year-round

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Zone 11a

Lowest Temperature Range:

40°F to 45°F

Regions:

Hawaii, Florida Keys

Growing Season:

Year-round tropical

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Zone 11b

Lowest Temperature Range:

45°F to 50°F

Regions:

Southern Florida Keys, Hawaii

Growing Season:

Year-round tropical

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Zone 12a

Lowest Temperature Range:

50°F to 55°F

Regions:

Puerto Rico, Hawaiian Islands

Growing Season:

Year-round tropical

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Zone 12b

Lowest Temperature Range:

55°F to 60°F

Regions:

Puerto Rico, Hawaiian Islands

Growing Season:

Year-round tropical

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Zone 13a

Lowest Temperature Range:

60°F to 65°F

Regions:

Parts of Hawaii

Growing Season:

Year-round tropical

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Zone 13b

Lowest Temperature Range:

65°F and above

Regions:

Parts of Hawaii

Growing Season:

Year-round tropical

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