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Re: Declining vigor

On Mon, 16 Dec 1996, Amy Rupp wrote:

> > inherent in the cultivar, or is it due to garden conditions?  Some
> > cultivars, as we all know, simply die or rot immediately, an indication that
> > they do not like their new home.  But why do some do well the firs year and
> > then die or rot?
> It's because the energy and bloom created in their beautiful Pacific
> home arrives in Tennessee with the rhizome.  It's the NEXT year that
> it's got to try to build up energy reserves and form bloom for the
> following season.  That's why it's important not to remove foliage after
> bloom so that the bulb/rhizome can make/store energy for next year
> through photosynthesis. Amy Moseley Rupp amyr@austx.tandem.com, Austin, TX, 
zone 8b
Would it be helpful (to the irises) to put on alfalfa pellets. Are
these known to help stop this loss of vigour?

Diana Louis <dlouis@dynamicro.on.ca>
Zone 4/5 Newmarket, Ontario, Canada

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