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gwl-g - Re: [gwl-g] Last Frost Date

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  • From: miranda@tagoresmith.com
  • To: "gardenwriters-on-gardening" <gwl-g@lists.ibiblio.org>
  • Subject: Re: [gwl-g] Last Frost Date
  • Date: Fri, 21 Apr 2006 14:44:19 -0500 (CDT)

Ellen,

All I know for certain is that when hardiness zones were changed a few
years ago, people were swearing at the USDA. From that, I am guessing that
the USDA assigns frost dates. But I don't have a clue how they do
it--where do they get the data on which they base the frost dates? So I
doubt that this is much help.

It might be worth a call to Extension to see if anyone there knows.

Miranda







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