Re: misinformation about AHS heat zone map

**"* P* <r*@comcast.net>**

I've done some work with TheMulch website based in California...Mitch Shirts may want
to chime in on this...they rely mostly on the AHS heat zone map...and basically don't
really use our hardiness zone maps. I think it is based on who you are writing
for...basically, from what I see, the Midwest and East mostly rely on hardiness
maps...California and other hot southern areas rely on heat zones...it makes sense to
me...

Just my measly 2 cents...probably worth about a half a penny these days...!

Sandie Parrott
Writer/Blogger/Photographer

I had received an answer to my query about folks using the AHS heat zone map that
said that AHS was about to discontinue its use. I checked with David Ellis and got
this reply 

Hi Cathy: 

Nope, no such plans are in the works. We continue to sell poster-size copies of the
map regularly by mail order and get a steady stream of requests from publishers to
reproduce the maps in books and on websites. And heat zone codes are included in our
most recent books, including the AHS Great Plant Guide (March 2011) and the AHS
Encyclopedia of Plants & Flowers (coming out this fall)--and of course in The
American Gardener magazine. 

Once the USDA comes out with its updated hardiness map, I think it may spur
discussion of revising and updating the Heat Zone map, perhaps using new technology
to expand the parameters used to create the map. But of course the Heat Zone map's
great champion, Dr. Cathey, is no longer with us, so one of the unknowns is whether
new leaders from the scientific community will step forward to fill that breach. 

David J. Ellis 
Director of Communications, Editor of The American Gardener 

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