Re: I. Pseudacorus variegata

From: DWiris@aol.com

Dear Donald,

There is a form of I. tectorum that is variegated in the spring, but turns all
green in the summer.  We got a plant that was supposed to be I. tectorum with
white striped leaves that stayed that way.  Now we have been told it is a form
of I. japonica which is not hardy in our zone 5/6 area of northern Ohio.
Fortunately, we have access to some room in a greenhouse to store it over
winter.

I. pseudacorus does seem to get a bit weedy if planted in the edge of a pond
and not deadheaded.  There is a series of ponds here called the Shaker Lakes
and they have a wide rim of I. pseudacorus all around them.  The most
fantastic iris we have seen spreading like this is I. missouriensis that we
found growing in the Sierra Nevada foothills on the Nevada/California border.
There were miles and miles of them in pastures along the road.  Apparently
these pastures flood during early spring and spread the seeds downstream.
They are considered a real pest by the cattle people because they are crowding
out the grass for the cattle to eat.

Dorothy Willott

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