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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 USDA Plant Hardiness Zone Map includes 13 zones across the United States and is based on 30-year averages for the lowest winter temperature in each region. The map is divided into 10-degree ...
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.
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.
The coldest temperature was −2 °F (−19 °C), on February 13, 1899, just 25 miles (40 km) away, in Tallahassee. The USDA Plant hardiness zones for the state range from zone 8a (no colder than 10 °F (−12 °C) ) in the Crestview to zone 10b (no colder than 35 °F (2 °C) ) in Southeast Florida in 1990. [17]
English: map of USDA plant hardiness zones across Europe Deutsch: Karte der USDA-Klimazonen in Europa Français : carte des zones de rusticité des plantes selon l'USDA en Europe
On the 2012 Plant Hardiness Zone map, Greater Columbus (and a good portion of the rest of Ohio) was in Zone 6a, where the average lowest temperature ranges from -10 to -5 degrees Fahrenheit. In ...
What the USDA's new plant hardiness map means for your garden. Gannett. Paul Cappiello. January 5, 2024 at 2:04 AM. 2023 USDA Plant Hardiness Zone Map for Kentucky. At last. Finally, there’s an ...