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The USDA Hardiness Zones for Virginia range from Zone 5A (-20°F to -15°F) in the mountains, to Zone 8A (10°F to 15°F) along the coast. A lot of variations occur because of the state's significant relief.
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 ...
According to the USDA, these zones are "based on the average annual extreme minimum winter temperature." They are displayed as "10-degree F zones ranging from zone 1 (coldest) to zone 13 (warmest ...
It has been adapted by and to other countries (such as Canada) in various forms. A plant may be described as "hardy to zone 10": this means that the plant can withstand a minimum temperature of 30 to 40 °F (−1.1 to 4.4 °C). Unless otherwise specified, in American contexts "hardiness zone" or simply "zone" usually refers to the USDA scale.
The new data is based on 1991-2020 GIS data collected from over 13,000 weather stations.
In general, hardy palms can only tolerate brief periods with temperatures in the range −18 to −12 °C (0 to 10 °F). As such, this generally limits hardy palm cultivation and long term specimens to hardiness zone 7a or higher. Some hardy palms can be cultivated in areas with low temperatures slightly below this range when given wind ...
Learn what plant hardiness zone you're in and the best plants for your region. Skip to main content. Lifestyle. 24/7 help. For premium support please call: 800-290 ...
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.