A new Plant Hardiness Zone Map released by the federal government Wednesday shows that temperatures across the country are getting warmer and could affect gardens and crops.
The map is designed to help the estimated 80 million gardeners in this country, as well as farmers and horticulture businesses, identify where and when plants grow best by breaking up geographical areas into 26 zones.
Read more: http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2012/01/25/BU011MUBO0.DTL#ixzz1kaeAN0hs
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