Caroline County, Maryland Hardiness Zones

According to the 2023 USDA Hardiness Zone Map Caroline County, Maryland is in Zones 7b (5°F to 10°F) and 8a (10°F to 15°F). This is a change from the 2012 USDA Hardiness Zone Map which has Caroline County in Zones 7a (0°F to 5°F) and 7b (5°F to 10°F).

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