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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 ...
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 new map gives guidance to growers about which plants and vegetables are most likely to thrive in a particular region as temperatures increase. New plant hardiness zone map to help NC gardeners ...
In 2012 the USDA updated their plant hardiness map based on 1976–2005 weather data, using a longer period of data to smooth out year-to-year weather fluctuations. [7] Two new zones (12 and 13) were added to better define and improve information sharing on tropical and semitropical plants, they also appear on the maps of Hawaii and Puerto Rico.
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.
The Internet is full of hardiness maps such as these ones, in fact all of these 4 maps change a lot from one to another one (for example the 3rd map that's showing SW Iberia as Zone 10, then the 2nd map shows the same area between -5/0 -9a to 10a- and it shows coastal Galicia between -5/-10 (it puts La Coruña or Porto in 8a/9a zones, the same ...
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 hardiness zone map is not a guarantee your plant will survive. It's important to understand that the USDA hardiness zone is an indication of which plants are most likely to thrive in a location.