Re: Iris question
Marilyn Dube wrote:
> Mark, In my experience, the Siberians definitely benefit from being divided
> every 3 years or so. The tall bearded Iris are notorious for pooping out if
> they are not divided and the largest rhizomes thrown away. I have not heard
> of clipping root tips as you describe. It sounds like a lot of work.
> Marilyn Dube'
> Natural Design Plants
> Hardy Perennials, Choice Tropicals
> Portland, OR Zone 8b
thanks Marilyn,
yes it does sound like a lot of work...I guess that is one
of the great advantages of being a Buddhist monk
practicing gardening as meditation: you don't think
of hard work as work at all.
I will try an experiment on some of the irises this fall and
let you know the results. Most of them I will divide. I
wonder whether there is any advantage to spring division
over fall division...
mark on Long Island , NY
>
>
> -----Original Message-----
> From: owner-perennials@mallorn.com [owner-perennials@mallorn.com] On
> Behalf Of markmos@banet.net
> Sent: Friday, September 24, 1999 6:44 AM
> To: perennials@mallorn.com
> Subject: Iris question
>
> I have been growing various types of Iris for a number of years now:
> Iris japonica, Kaempfari, germanica, bearded, sibirica, and pseudacorus.
> Over the years, I have noticed that there is a drop in the number of flowers
> on all these types except for the pseudacorus.
> Fertilization does not seem to significantly alter this drop off, though
> it has marked affect on leaf growth and color. I have
> been told that in Japan the large iris gardens are actually lifted out of
> the ground every other year and the root tips clipped in order ti
> reinvigorate the plant.
>
> Does anyone on the list have any knowledge or experience with this?
>
> Mark on Long Island, NY.
>
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