Sunset Garden Books for the east
Fri, 13 Feb 2009 07:59:27 PST
Sunset does have such a book. It describes the 45 zones nationwide. 
Title: Sunset National Garden Book

And while looking for the precise wording of that title, I see that 
they also have Sunset Northeastern Garden Book

original message --
Would that Sunset magazine would develop their incredible zone system
for the American West to cover country-wide. (I did once write and ask
if they'd consider publishing Sunrise, the magazine of Eastern living.
Never got an answer.)

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