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Understanding the updated Plant Hardiness Zone Map and how it can improve your garden
The United States Department of Agriculture (USDA) has released a new Plant Hardiness Zone Map (PHZM), the first update since 2012. The new map shows that most of the country, including New York State ...
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Here's How to Use the USDA's Plant Hardiness Zone Map
Devised by the United States Department of Agriculture (USDA), the map ... Interestingly, the first edition of the plant hardiness zone map was created by Arnold Arboretum at Harvard in 1927! And ...