New Hardiness Zone Map?

[Pee Dee Palms]

So as many of you know, the current hardiness zone map is extremely outdated. I was wondering if anyone knows about a hardiness zone map that goes into detail that is much more modern? Also, my most important question, does anyone know when the next USDA hardiness zone map will come out?

[Cevven]

On 3/24/2022 at 8:12 PM, General Sylvester D. Palm said:

So as many of you know, the current hardiness zone map is extremely outdated. I was wondering if anyone knows about a hardiness zone map that goes into detail that is much more modern? Also, my most important question, does anyone know when the next USDA hardiness zone map will come out?

Someone posted the Arbor Day hardiness zone map, which I resonate with personally. Now, I'm not sure if USDA will ever come up with a new map anytime soon. A forum member said he heard 2035, but last I read, they are not going to change it because they came to the conclusion the zones are still the same in their eyes. As a palm and sub/tropical plant guy, I honestly want us to have warmer hardiness zones but unfortunately the USDA has the OFFICIAL map because it's a federal government organization. If you planting for yourself at your personal property, you can use any map you want, Arbor included but if you doing professional landscaping or landscaping for or with a corporation (or own a plant nursery that has important clients or work with elite developers) -- then you have to go by the USDA maps more than likely to avoid anything legal, etc. Arbor Day may give you hope with the map looking "warmer" with the hardiness zones but Arbor Day Foundation is recognized as a non-profit but nowhere near the status of the USDA.

For example, Raleigh based on the NOAA is technically zone 8A at the RDU Int'l Airport station (mean min temp 12'F from '91 to '20) but it's still officially zone 7B based on the USDA map - and as I said the USDA is the standard, whether I like it or not (which I don't, but it is what it is).

Edited March 27, 2022 by Cevven

[southathens]

Does the USDA have an international PH map as well?

[Aceraceae]

On 4/2/2022 at 2:39 PM, Manos33 said:

Does the USDA have an international PH map as well?

No, but people have made unofficial maps of other continents using the same data they use going by mean minimums.