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Re: Re: temperatures and hardiness


You're right Cathy - the AHS heat zones are based on average number of
days per year above 86 degrees. I've got the big map on my wall right
here in my cubicle so I'm reading right from it.

 
Pam Evans
Kemp, TX
zone 8A
----- Original Message -----
From: cathy carpenter
Sent: 4/12/2004 1:30:55 PM
To: gardenchat@hort.net
Subject: [CHAT] Re: temperatures and hardiness

> I thought that the AHS numbers had to do with heat tolerance, not cold, 
> and the USDA dealt with cold tolerance. Or am I just confused again?
> Cathy
> On Monday, April 12, 2004, at 08:18 AM, TeichFlora@aol.com wrote:
> 
> > In a message dated 4/8/2004 9:41:34 AM Central Standard Time,
> > gardenchat-owner@hort.net writes:
> > I don't know where AHS got their temperature recommendations from, but
> > most of the ones I've checked--and I don't check them that often--way
> > understate the hardiness of most so-called tropicals. Half the plants
> > in my yard would not survive, let alone flourish, if AHS numbers were
> > accurate.
> > Amen.  Although I have noticed that the difference is that in zone 9 
> > and
> > higher the temps don't stay low for long....only an hour or two then 
> > back up.
> > Perhaps this is their way of averaging the temps.  For instance, a 
> > plant might
> > survive fine with a dip down to 32 for a short time, but might not 
> > survive if it
> > stays around 32 for days on end.
> > Noreen
> >
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