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Re: Re: CULT: Growing Japanese Irises in Pots?

> On November 22, 2000 05:39 pm, you wrote:
> > Hello Talkers:
> >
> > Regarding growing Japanese Irises, Clarence Mahan (Pres. of the
> > Iris Scoeity and a scholar of some considerable repute) has written a
> > on "Iris Myths," in which he stresses that Japanese irises need to be
> > either in pots or dug up and relocated every three years or so.  This
> > due to the tendency of I. ensata to emit a substance that is toxic to
> > itself.  The toxic substance can be leached out if the plants are grown
> > either in pots or at the edge of a water source.  Interesting.
> 	I know plants like black walnut put out chemicals to make life tougher
> other plants but you're saying the irises poison themselves? What is the 
> natural home for Japanese Irises? I thought it was meadows. They might
> flooded during the spring but what you're saying is they only grow near 
> streams etc?
> Nick
 One half of my iris are growing in the drip line or very close to it of a
black walnut tree. I have had no problems that I know of. The tree is just
over the fence line. The tree seems to be growing better since I planted
iris there.  Trunk about 18" at base. 

Mike Greenfield
SW Ohio Zone 5b 

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