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Re: USDA zones?

daffodil@enternet.co.nz wrote:
> 
> > Ive noticed something about the USDA zones. Those zones are very general and
> > vague.
> >. Anyhow point is Sunset zones are more specific. Like my zone, 17,
> > Major marine influece and winter temps get barely past freezing.)
> 
> We all sure wish there was something as specific as the Sunset zone system for
> the rest of the country, but alas, there isn't. The USDA zone map is based on
> average minimum temperature, period. There have been some attempts at other
> sustems, but none have caught on because of some flaw or other. The soils,
> precipitation patterns, humidity and local topography mean so much in using
> those zone numbers (the factors considered in the Sunset system), but at least
> it gives us a start. I can relate to a question or comment if I can at least
> associate it with a zone number.
> 
> Mary R. Henry
> Dept. of Horticulture
> U. of MN
> phone: 612-729-9524
> FAX: 729-1573
> "We're all in this together."  USDA Zone 4a
> 
> Dear Mary,
> 
> If its not to much trouble and for the benefit of all other list
> members outside the USA,could you perhaps give us a detailed list and
> simple explanation how the USDA zones system works of all USA states?
> (including Alaska and Hawaii for comparison)
> I am sure with your knowledge on the subject, we will all be the
> wiser and more informed
> Could you also explain how the Sunset zone system works please?
> I live in New Zealand (North Island) latitude 37.5 (almost frost
> free) Average Winter temp.10 C.    AverageSummer temp.24 C.
> Would that be zone 8,  9  or 10 ?
> We could then store or print the info list for easy reference,when we
> correspond on the Internet with our friends in the USA.
> Your efforts would be much appreciated Mary.
> Thanking you in advance.
> 
> Kind regards, Bill  Dijk.    zone.........?
> 
> Ps: Any additional relevant information from other list members would
> be welcome. Thank you.
Hello: You are most likely zone 9 which is based on an aveage minimum
winter temperature of 20 to 30 degrees F. These zones are in 10 degree 
increments with zone 8 being 10 to 20 degrees.
	Iam very interested in New Zealand plants which I try to grow here in
Vancouver Washington though many are borderline here. But some do very
like hebes and podocarpus nivalis. I have many species of conifers from
New Zealand which I plan to try here after I propagate
some insurance plants.
	Regards   Robert Aebel
well like Hebes and
References:
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