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Our Plant Hardiness Zone has changed from 6b to 7a 

Highlands, North Carolina 28741

2023 Hardiness Zone = 7a (0 to 5 degrees F)
2012 Hardiness Zone = 6b (-5 to 0 degrees F)
Temperature Change 2012 - 2023 was +4 degrees F

The USDA Plant Hardiness Zone Map (PHZM) is the standard by which gardeners and growers can determine which perennial plants are most likely to thrive at a location. The map is based on the average annual extreme minimum winter temperature, displayed as 10-degree F zones and 5-degree F half zones. 


To use the interactive map, click on the link below, then type in your zip code to find your location.

USDA Plant Hardiness Zone Map, 2023. Agricultural Research Service, U.S. Department of Agriculture. Accessed from 

Two new zones were added to 2012 and this 2023 edition of the USDA PHZM. Zones 12 and 13 have been introduced for regions with average annual extreme minimum temperatures above 50 degrees and 60 degrees F, respectively. These are tropical plants, sometimes used as house plants.

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