Re: Re: Dividing Japanese Iris
Location makes a big difference. If planted as a regular garden plant, JIs are
fine up to 4 years. Then they really need to be dug. If they are planted near
running water, they may not ever need to be dug. The hypothesis is that the JIs
produce some toxic substance that builds up and kills the plant. Planting by
running water would wash the toxins out regularly.
Maureen
Ottawa
hootowl@eurekanet.com wrote:
> Leroy Kriese wrote:
> >
> > > JIs will die if not divided every 3 yrs.-might make it thru a 4th yr. The
> > > rhizomes grow on top of each other and probably starve to death. Anna Mae
> >
> > > Miller, Kalamazoo MI z 5 who loves John Whites and Currier's gardens.
> > >
> Greetings,
> This must vary depending on location, soil, weather, etc. since our
> Japanese Iris take at least 3 years here to give a true color and size
> bloom. If they like where they are, they keep on without needing
> dividing for many years past that.
> Jane
> --
>
> Hoot Owl Hollow Nursery
> New Marshfield, Ohio
> http://www.hootowlhollow.com
>
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