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The good news is the USDA has created an easy-to-use interactive version that's free for everyone. You simply type in your zip code and it gives you zoomed in, color-coded view of your area ...
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 wetter season occurs from November through March. The average annual rainfall over the ten years from 1997/98 through 2006/07 was 8.97 inches (228 mm). The city falls within USDA plant hardiness zones 9a (20 to 25 °F; −7 to −4 °C) and 9b (25 to 30 °F; −4 to −1 °C). [21] [22]
In 2006, the Arbor Day Foundation released an update of U.S. hardiness zones, using mostly the same data as the AHS. It revised hardiness zones, reflecting generally warmer recent temperatures in many parts of the country, and appeared similar to the AHS 2003 draft. The Foundation also did away with the more detailed a/b half-zone delineations. [6]
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 hardiness zone maps As long as there have been gardeners, people have noticed that some plants can survive extremely cold temperatures while others cannot. Tomatoes die at 32.
Hardy palms are any of the species of palm that are able to withstand brief periods of colder temperatures and even occasional snowfall.A few palms are native to higher elevations of South Asia where true winter conditions occur, while a few others are native to the warmer parts of the temperate zone in southern Europe, and others are native throughout temperate and subtropical locales in the ...
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