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USDA hardiness zones

Find your zone. Plant with confidence.

The USDA splits the country into 13 zones by average winter minimum temperature. Your zone tells you which perennials survive the winter and when spring planting can begin.

USDA hardiness zones across the US

Tap a state to explore its zone

Alabama — Zone 8Alaska — Zone 4Arizona — Zone 9Colorado — Zone 5Florida — Zone 10Georgia — Zone 8Indiana — Zone 6Kansas — Zone 6Maine — Zone 4Massachusetts — Zone 6Minnesota — Zone 4New Jersey — Zone 7North Carolina — Zone 7North Dakota — Zone 4Oklahoma — Zone 7Pennsylvania — Zone 6South Dakota — Zone 5Texas — Zone 8Wyoming — Zone 4Connecticut — Zone 6Missouri — Zone 6West Virginia — Zone 6Illinois — Zone 6New Mexico — Zone 7Arkansas — Zone 7California — Zone 9Delaware — Zone 7District of Columbia — Zone 7Hawaii — Zone 11Iowa — Zone 5Kentucky — Zone 7Maryland — Zone 7Michigan — Zone 5Mississippi — Zone 8Montana — Zone 5New Hampshire — Zone 5New York — Zone 6Ohio — Zone 6Oregon — Zone 8Tennessee — Zone 7Utah — Zone 6Virginia — Zone 7Washington — Zone 8Wisconsin — Zone 5Nebraska — Zone 5South Carolina — Zone 8Idaho — Zone 6Nevada — Zone 7Vermont — Zone 4Louisiana — Zone 9Rhode Island — Zone 6
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Each state shaded by its dominant zone. Many states span 2-3 zones — get your exact ZIP-level zone via onboarding.

Zone 3

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Coldest — Upper Midwest, Northern Maine

Last frost: late May

Zone 4

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Cold — Minnesota, Montana, upstate NY

Last frost: mid May

Zone 5

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Cool — Iowa, Michigan, much of New England

Last frost: early May

Zone 6

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Moderate — Ohio, PA, Missouri

Last frost: late April

Zone 7

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Mild — Mid-Atlantic, NC, OK

Last frost: mid April

Zone 8

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Warm — GA, coastal Carolinas, Pacific NW

Last frost: late March

Zone 9

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Hot — Florida, south TX, central CA

Last frost: February

Zone 10

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Subtropical — south FL, southern CA

Last frost: January

Zone 11

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Tropical — Key West, South Hawaii coast

Last frost: frost-free

Zone 12

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Tropical — Hawaii, Puerto Rico

Last frost: frost-free

Zone 13

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Tropical — southernmost Hawaii, PR interior

Last frost: frost-free

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