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The USDA released a new hardiness zone map and half of the country has shifted. ... according to data collected by over 13,000 weather stations across the U.S. ... using the new map can help set ...
For example, Seattle, Washington, and the city of Austin, Texas, are both in the USDA hardiness zone 9a because the map is a measure of the coldest temperature a plant can handle.
The last time the USDA changed the Hardiness Zone map was 2012. ... The 2023 map incorporates data from 13,412 weather stations around the country compared with the 7,983 that were used for the ...
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.
A hardiness zone (a subcategory of Vertical Zonation) is a geographically defined area in which a specific category of plant life is capable of growing, as defined by climatic conditions, including its ability to withstand the minimum temperatures of the zone (see the scale on the right or the table below). For example, a plant that is ...
File:USDA hardiness zones of Europe.svg. ... Download QR code; ... English: map of USDA plant hardiness zones across Europe.
Here’s the thing most people miss with the whole cold hardiness map thing. The zones represent mean annual minimum temperature, not the minimum temperature.So in my now zone 7a Kentucky garden ...
The USDA hardiness zones range from Zone 6A (−10 °F to −5 °F or −23 °C to −21 °C) in northwestern Ashe County, to Zone 7B (5 °F to 10 °F or −15 °C to −12 °C) in areas along the county's southeastern border with Wilkes County. [13]