Re: CULT: question - frost heave

I think it depends on if the freeze is enough to stop or signifigantly stop plant
growth before the next series of freezes. It needs to grow the roots as deeply as
possible, although we have had frost heave here that has lifted two year clumps. I
think it mostly revolves around soil moisture levels at the time freezing occurs.
If it will heave a 4" thick sidewalk, an iris is not a challenge :)

John Bruce
zone 5 SW Ohio
----- Original Message ----- 
From: "Dana Brown" <danabrown@peoplepc.com>
To: <iris@hort.net>
Sent: Tuesday, September 27, 2005 4:38 PM
Subject: RE: [iris] CULT: question - frost heave


> Just out of curiosity, would it make a difference how long between your first
freeze
> and the ground being frozen?  We traditionally have our first freeze Halloween
> weekend but I bet the ground doesn't actually freeze until late December or
> January.
>
> Just wondering?
>
> Dana

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