The updated map still consists of 13 zones, but now offers more detailed information on temperature ranges within each zone, including 10-degree zones and 5-degree half zones.

The USDA divides the United States into seven planting regions, known as hardiness zones, which were most recently updated in 2023. The maps below show these planting regions. Need a break?

The U.S. Department of Agriculture has recently released a new “plant hardiness zone map” that shows some areas of Western New York can now be considered a zone warmer, for ...

Ohio is part of 4 hardiness zones, 5b through 7a, on a scale that goes from 1a to 13b. “In 5b, the temperature range is -15 to -10 degrees Fahrenheit for the average annual extreme minimum ...

The USDA Plant Hardiness Zone Map divides North America into 13 zones based on the average annual minimum winter temperature. In 2023, the USDA released an updated hardiness zone map in response ...

The first U.S. hardiness zone map was published in 1927 with 8 hardiness zones. There have been several versions of this map since then, including an expansion from 8 to 13 zones.

The United States Department of Agriculture (USDA) is responsible for creating a plant hardiness zone map. This tool divides the country into 13 color-coded areas based on their average extreme ...

For the first time since 2012, the USDA, in conjunction with Oregon State University’s PRISM Climate group, has released an updated Plant Hardiness Zone map.

The U.S. Department of Agriculture revamped the zone maps and announced the changes last year, based on warmer average temperatures. For Northwest Indiana, though, the change doesn’t mean much ...

Lancaster County communities moved into warmer zones from the 2012 map to the 2023 map. For example, Lancaster moved from 6b to 7a. In 7a, the average low temperature over 30 years was 0 to 5 degrees.

The Plant Hardiness Zone Map is based on the average annual extreme minimum winter temperature, displayed as 10-degree F zones ranging from zone 1 (coldest) to zone 13 (warmest), the USDA notes.