'Zone' system query
Greets all and a merry and safe christmas to all of you.
I have noticed in several posts the the term Zone 9 or Zone 5 etc is
mentioned when describing locality. Being from Australia, I have no idea
what this means exactly. Could someone point me to a site or resource that
explains this Zoning system as it would further clarify much of the advice
given in this fine newsgroup.
Thanks.
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