Re:Heat zones USDA
- To: "iris-talk"
- Subject: Re:Heat zones USDA
- From: C* M* M*
- Date: Wed, 26 Apr 2000 10:04:08 -0600
Where I am in western Montana, the climatic zone listed for us is '3'--
we are listed thus because of winter temperatures--I have never heard of
Heat Zones--how would you list if you were in a different zone for winter
and summer? Of course, there are some plants which will do fine here--even
though they are not listed as winter hardy for zone 3--and there are
some-Azaleas and Rhodys that are listed for being hardy for here and do not
survive the first winter--
If you have a good snow cover, plants will be more insulated from the
cold--but there is nothing to insulate them from the heat--
After having grown Iris in several different heat zones--I have learned that
the bearded ones will grow almost anywhere--Siberians do not like 10-15 days
of heat--the temp not going below 100C for that length of time--
the Medians like the colder areas
Spurias will grow here--not prolifically--but will grow and bloom--
So now hope to find some Japanese to grow here--Lorena has convinced me that
some will grow here--so am fixing a bed this year for them--
All my experience with growing Iris has been in the west--in areas of very
low humidity--I am sure that higher humidity will have an effect on their
growth--
Carryl in western Montana zone 3
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