Grapebreeders Home Page
Grapebreeders in USA, Updated 20 - May -2006
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Holding your mouse on a site, you will get you a pop-up with name, location & GDD info. This GDD is calculated from the average month temperature during the past 20 years ( from www.weather.com ). Now the info from here is limited to a 12 months temperature index, meaning that I could miss up to ½ a month GDD in spring and ½ a month in the other end of the warm GDD season. So you probably have to add 100-200 GDD in worst case.
Hardiness MAP for US: Click here
Grapebreeders in EU,
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