CULT:
- To: Iris-talk
- Subject: CULT:
- From: L* M*
- Date: Thu, 21 Oct 1999 09:14:43 -0700
From: Linda Mann <lmann@icx.net>
John Jones quoted Bill Shear in Virginia from last year post:
> > I performed a brief experiment this fall with a group of very dry rhizomes,
> > on which most of the foliage had whithered. On ten of them, I removed all
> > the roots before planting, and on another ten I left the old roots on.
> >
Bill, were these all the same cultivar?
One of the factors not taken into account in these experiments is
cultivar root differences - some produce roots a lot faster than others,
have greater overall vigor, etc.
I still think that it has to take more stored energy reserves to produce
new roots than to use the old ones, so that weak rhizomes/fussy
cultivars might be somewhat less likely to thrive if they have to make a
whole new root system. BUT! That matters more for people who are
trying to grow irises in marginal locations than for those with good
soil & more reasonable climate (like Walter Moores).
Wheee - more experiments!
Linda Mann east Tennessee USA
nearly frosted this morning - average first frost is mid October, but
killer freezes to the low 20s usually don't hit for another month.
Weekend promises to be unpleasant, and worse in Kentucky. Snow? In
October??
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