Re: The Frost
Thats about the same low temps that we get in St Louis in the winter. I actually looked up the annual min temps on weather underground and the average min temp for the past 10 years was 5F. So that would mean that St Louis is really in zone 7b (thats in the city). I live in the NW suburbs and it seems to get a little bit colder here but not below zero in the past 3 years that I have lived here, we are probably more like 7a where I live.
I think that when the new USDA zone maps come out the St Louis metro area will be in zone 7 and surrounded by a sea of zone 6. My wifes parents have a second home in the Ozarks and it gets colder there 150 miles SW of st louis.
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Jeremy
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