1936 usda zones, US

Norman Woollons normanwoollons@gmail.com
Wed, 10 May 2017 02:43:46 PDT
It was Mike Mace who gave the link, in response to my posting, so he
deserves the credit, not me.

I do agree though, it is a fantastic resource and the result of
considerable hard work.

Norman
-- 
This week's "*Life in a Dol house*" Blog: *https://goo.gl/D0P8Iu/
<https://goo.gl/D0P8Iu/>*
The natural year in Dol: :  *https://goo.gl/8TxpSs/ <https://goo.gl/8TxpSs/>*
The weather today in* Dol *: *https://goo.gl/3aRJ2c/ <https://goo.gl/3aRJ2c/>*



On 10 May 2017 at 10:23, Shmuel Silinsky <gardenbetter@gmail.com> wrote:

> This is a great thread. Here in Isreal we are a country the size of New
> Jersey that goes from alpine (Mount Herman - which has a ski resort) to
> extreme desert in the south and everything in between. The PBS wiki page
> that Norman gave is fantastic. I had not seen it before - there are truly
> hidden treasures here.
>
> Norman wrote:
>
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> *FYI for new list members, there is a zone system for summer-dry climates
> onthe
> http://…
> <http://pacificbulbsociety.org/pbswiki/index.php/…>Even
> that is just an approximation, of course, since it doesn't take intoaccount
> things like soil type and moisture from fog. But it's a startingpoint to
> understanding the native climate of a particular summer-dormantbulb.*
>
> One thing I have never really understood (only one?) and if it could be
> explained Iwould really appreciate it. The chart combining cold and wet has
> Coldest Winter Month lows average. This is a puzzle to me as to how to use
> that info. Is it the average of coldest temp for that month? Isn't the
> actual lowest temperature more impiortant? I live in Jerusalem - C3 on the
> chart which has lows average of 40-45 F. Yet we have consistently weeks
> with nights at freezing, one or two snows a year, sometimes getting a few
> inches. Definitely frosts. That is generally the limiting factor for most
> gardening. Is it that geophytes nestled in their insulating bed are more
> affected by the average than the air temp? Of course, when those cold snaps
> happen, the winter growers are already above ground...
>
> I have seen average lows on many charts and just do not understand how to
> use it.
>
> Thanks!
> Shmuel Silinsky
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>




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