RE: CULT: question - frost heave

I didn't post on this thread for the same reason Jeff writes about. We are too cold 
too soon for any fall heaving (or spring heaving usually).  The ground freezes early 
and stays frozen until April (or March in a 'warm' year). I try and plant bearded in July 
and early August and beardless from May to August and plant nothing after
mid-August except peonies and bulbs in September.
 
Ellen (Arnold, interesting about those Siberians you planted in Oct. - surprised your
Iowa ground wasn't frozen but Siberians can take almost anything :-)
 
 
Jeffrey Walters <jeffwiris@yahoo.com> wrote:

I follow the same practices as Susan; I would say that it represents the common wisdom about planting irises here in Utah. I have never experienced any particular problems with frost heaving. Once the ground freezes hard here, it generally stays frozen until the general spring thaw occurs in March (no alternate periods of freezing and thawing during the winter), so the rhizomes are literally frozen tight and can't heave.



Ellen Gallagher / ellengalla@yahoo.com / Editor, The Siberian Iris 
Berlin, New Hampshire - USDA Zone 3 
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