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According to the new map released in November 2023, about half of the United States has shifted to a new hardiness zone. That's really big news if you consider 80 million Americans use this map to ...
The 2023 USDA plant hardiness zone map, which shows which areas of the country are suitable for growing plants and crops based on the lowest temperatures during the growing season.
As of the most recent release, the November 2023 map has the US broken into 13 cold hardiness zones in 10-degree Fahrenheit intervals, with each zone further broken into “a” (the warmer half ...
In addition to the USDA Hardiness zones there are American Horticultural Society (AHS) heat zones. The criterion is the average number of days per year when the temperature exceeds 30 °C (86 °F). The AHS Heat Zone Map for the US is available on the American Horticultural Society website. [89] [90]
Hardiness of plants is defined by their native extent's geographic location: longitude, latitude and elevation. These attributes are often simplified to a hardiness zone. In temperate latitudes, the term most often describes resistance to cold, or "cold-hardiness", and is generally measured by the lowest temperature a plant can withstand.
Hardiness may refer to: Hardiness (plants), the ability of plants to survive adverse growing conditions Hardiness zone, area in which a category of plants is capable of growing, as defined by the minimum temperature of that area; Psychological resilience or mental resilience, positive capacity of people to cope with stress and catastrophe
More recently the USDA maps have been reissued in 2012 and 2023. Because they are now using data from the past 30 years instead of going back farther in time, and because those years saw a string ...
The USDA released a new hardiness zone map and half of the country has shifted. Read more here so you're ready to plant this spring. ... 800-290-4726 more ways to reach us. Mail. Sign in.