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RE: Re: TB: When to Divide Clumps?

Another thing to consider when digging...feed the clump a few weeks before
digging...this stimulates the rooting, allows the plant to uptake some
nutrient it will need to get going. If you feed early enough before digging
it will allow the plant to produce some additional starch increasing your
odds for a subsequent bloom.

We encourage everyone that inquires at the yard to feed first and water
well, then dig.  Your plants will appreciate it and your back will as well.

As far as I. Pallida goes....it predates most of us by several hundred

It (dalmatica) just happens to be one of my favorites as well Linda.  That's
another story altogether.

-----Original Message-----
From: owner-iris@hort.net [mailto:owner-iris@hort.net] On Behalf Of Linda
Sent: Thursday, June 15, 2006 3:15 AM
To: iris- talk
Subject: [iris] Re: TB: When to Divide Clumps?

A few things to keep in mind about when to divide:

Some (most?) cultivars will produce fewer and fewer bloomstalks as the
clump gets crowded and really won't bloom well unless reset
periodically.  There are some exceptions (the ones I love) that just
keep making a bigger and bigger, heavily blooming clump, year after
year.  I. pallida is like that.

Some cultivars will spread out a lot pretty fast and if they are planted
near each other, can make keeping track of which rhizome belongs to
which clump a challenge.

In some climates/soils, some cultivars take a while to settle in once
they are dug and re-set, and may not bloom the following year.

Some folks keep clumps blooming by digging out some of the rhizomes in
the middle of the clump or around the edges or both, making more room
for those that are left in place.
Linda Mann east Tennessee USA zone 7/8
East Tennessee Iris Society <http://www.korrnet.org/etis>
American Iris Society web site <http://www.irises.org>
talk archives: <http://www.hort.net/lists/iris-talk/>
photos archives: <http://www.hort.net/lists/iris-photos/>
online R&I <http://www.irisregister.com>

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