Found another link and I'll just edit into this post in the future:
Hop growers Association of America:
http://www.usahops.org/
The Oregon Dept of Ag website is undergoing renovation. However, they will probably still host this content somewhere on the new server:
http://www.ars-grin.gov/ars/PacWest/Corvallis/ncgr/humulus/huminfo.html
The Ozzies concluded that any area that can grow hops will also support hop diseases:
http://www.cababstractsplus.org/google/abstract.asp?AcNo=20033217421
I am sticking this one in thread to save room in my personal favorites folder. The "Hop Buying Guide for 2007" was especailly illuminating, though not germane:
http://www.hopsteiner.com/guide.html
And I finally found a reference to climate zone:
http://www.uvm.edu/~pass/perry/faqhops.html
The relevant guidance text is:
Quote:
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Originally Posted by uvm.edu
When should I plant my hops rhizomes outside? The best time to plant can vary from year to year, depending on the weather conditions. For a general guide, we recommend around the 1st of May for Plant Hardiness Zone 4, and 2 weeks earlier for each zone number higher.
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And the USDA climate zone map is here:
http://www.usna.usda.gov/Hardzone/ushzmap.html
Actually, the University of Vermont site is pretty darn helpful...