FINALLY - New USDA Hardiness map

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FINALLY - New USDA Hardiness map

Post  JimLewis on Thu Jan 26, 2012 3:30 pm

At LONG last the USDA has updated its plant hardiness zone map to reflect the real world. The 2012 map can be found at

http://planthardiness.ars.usda.gov/PHZMWeb/

The major changes come at the southern, and to a lesser extent, the northern parts of the map. Two additional warmer zones 12 and 13 have been added -- though 13 applies only to Puerto Rico and Hawaii. In the north and Midwest, some states now find themselves one zone warmer than they were a few days ago. Many of the rest of us face smaller changes -- MOST of them into warmer areas by about 1/2 zone, but a few have become colder.

All of you in the USA who identify your location by the USDA zones need to check the map. I have no idea whether changes have been made to international maps, or who it will be who does it.

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Re: FINALLY - New USDA Hardiness map

Post  fiona on Thu Jan 26, 2012 3:36 pm

Necessitated by global warming perhaps? Or was it just plain and simply inaccurate before?

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Re: FINALLY - New USDA Hardiness map

Post  GaryWood on Thu Jan 26, 2012 3:40 pm

Fiona, are you trying to start another war Very Happy
Wood

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Re: FINALLY - New USDA Hardiness map

Post  JimLewis on Thu Jan 26, 2012 3:50 pm

fiona wrote:Necessitated by global warming perhaps? Or was it just plain and simply inaccurate before?

Only by implication. No one comes right out and SAYS Global "warming" (Climate Change), but the map was scheduled for release some years ago, or so I was told, but was blackballed by the Luddites in the Bush Administration. The American Horticultural Society, which had been working with the USDA back then, put an earlier version of the revised map up in the interim. One of their people was my source of info a few years ago on the delayed publication. This map is, I understand, based on 30 years of data (which isn't much in terms of global time).

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Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

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Re: FINALLY - New USDA Hardiness map

Post  fiona on Thu Jan 26, 2012 3:52 pm

GaryWood wrote:Fiona, are you trying to start another war Very Happy
Wood
Yup. Just my way of passing the time as I can't get outdoors right now because of the darn snow!

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Go Ducks!

Post  RKatzin on Thu Jan 26, 2012 5:06 pm

Did you notice who put that map together? OSU, yeah baby! Oregons dabomb!

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Re: FINALLY - New USDA Hardiness map

Post  JimLewis on Thu Jan 26, 2012 7:13 pm

Incidentally, if you give the map your postal ZIP Code it will home right in on YOUR zone.

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Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

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Re: FINALLY - New USDA Hardiness map

Post  MrFancyPlants on Thu Jan 26, 2012 9:11 pm

7a it is... Thanks for the reference.

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Re: FINALLY - New USDA Hardiness map

Post  Todd Ellis on Fri Jan 27, 2012 4:27 am

Thanks Jim for sharing this. Very Happy
I sure wish the map makers would use colors that can be seen by color-blind folks! The browns and greens are too close in "value" to really discern obvious differences.
Best,
Todd

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Re: FINALLY - New USDA Hardiness map

Post  JimLewis on Fri Jan 27, 2012 3:32 pm

I agree. I'm not color blind, but these old eyes no longer discriminate such subtle differences in hue as between the various a and b steps. I think I'll drop a comment -- I think I recall an option on the page . . .

If you do it also . . . . . . . . . . . . . . .

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Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

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Re: FINALLY - New USDA Hardiness map

Post  Jay Gaydosh on Fri Jan 27, 2012 3:51 pm

My Brain is now Zone 10, my body tolerates Zone 7. Unfortunately, I still live in Zone 5b! Rolling Eyes

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Re: FINALLY - New USDA Hardiness map

Post  JimLewis on Fri Jan 27, 2012 3:55 pm

I've sent a message (via HELP). We'll see.

Also, it is a bit easier to distinguish the shading between (say) zone 7b and 8a if you go to View Maps, then print a high-res picture of the map for your state or region.

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Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

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Re: FINALLY - New USDA Hardiness map

Post  Oliver Muscio on Fri Jan 27, 2012 4:05 pm

Todd Ellis wrote:Thanks Jim for sharing this. Very Happy
I sure wish the map makers would use colors that can be seen by color-blind folks! The browns and greens are too close in "value" to really discern obvious differences.

Todd, as another color-blind person, I heartily agree! (fortunately, the zip code feature helped me out. It's 7a in SW Kentucky, now.)
Oliver

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Re: FINALLY - New USDA Hardiness map

Post  Todd Ellis on Fri Jan 27, 2012 10:33 pm

I remember losing my first juniper and not realizing that it had browning foliage. I see yellowing just fine. Very Happy

7a for Gordonsville,VA; Central Piedmont VA
I'm going to go back and look for comments on the option page as well.....

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Re: FINALLY - New USDA Hardiness map

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