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Re: Rose of Sharon

I live 100km s. of montreal and we usually don't get temps much below -10F
or -15F, however , several years back we had two nights in a row w/ -30F
and no snow cover.(a fifty year cold snap fluke).  Anyway, all 5 of my
rose of sharons came
through w/ flying colours and NO dieback at all.  Unfortunately, cold
alone is is not a determining factor for hardiness. T%hese same 5 shrubs
have been in my garden for 9 years yet last year w/ a much warmer than
normal winter, I had 2 die on me.  The other 3 survived w/ no dieback at
all.  They are all planted in the same bed just feet from each other. Go
figure.   

    Steve  graf@aldus.northnet.org
    usda zone 4b/5a in the beautiful Champlain Valley of NY 
                 ---------------------------------------
    The applause of a single human being is of great consequence.    
                        Plautus (254-184 BC)
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The law is the last result of human wisdom acting upon human experience 
for the benefit of the public.   Plautus (254-184 BC)                    
                     --------------------------------

On Thu, 4 Sep 1997, Heather Navarra wrote:

> Thanks to everyone who replied to my post re Rose of Sharon.  Consensus
> has it that it should be hardy, but the tag on the bush Hibiscus
> syriacus 'Collie Mullens' said "minimum temperatures -10 to 0F".  We
> normally get at least one cold snap where the temp drops to -35F with
> little or no snow cover, so I was concerned.  Anyone wish to comment
> further?
> 
> Heather in Markham, Ontario, Canada
> Cda Zone 6 / USDA Zone 5
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