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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 practical purposes, Canada has adopted the American hardiness zone classification system. The 1990 version of the USDA Plant Hardiness Zone Map included Canada and Mexico, but they were removed with the 2012 update to focus on the United States and Puerto Rico. [8] The Canadian government publishes both Canadian and USDA-style zone maps. [37]
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The CEC was established in 1994 by the member states of Canada, Mexico, and the United States to address regional environmental concerns under the North American Agreement on Environmental Cooperation (NAAEC), the environmental side accord to the North American Free Trade Agreement (NAFTA).
The Western Regional Research Center (WRRC), located in Albany, California, is one of four regional laboratories within the Agricultural Research Service of the United States Department of Agriculture. The WRRC has six research units, which conduct research into food production, processing, safety, bioproducts and invasive species control. [1]
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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.
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