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Thinning Versus Dividing in Bearded Irises

By KentPfeiffer
April 16, 2013

Although irises produce glorious flowers, the plants are remarkably carefree. They do have a somewhat unusual pattern of growth in comparison with other common garden perennials, though, and this presents challenges to gardeners.

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millerjoanni
Feb 3, 2017 10:47 AM CST
This was a great article. A friend gardener had shared similar info. But, I have the same concern as someone else. How do you know which one has bloomed or is spent? Do you replant it or throw it away? Will it produce newer ones that will bloom if you replant it? I definitely need to do this. I had very few blooms last year. The previous year I had several. Thank you! Thank You!


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[Last edited by millerjoanni - Feb 3, 2017 10:48 AM (+)]
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Name: Kent Pfeiffer
Southeast Nebraska (Zone 5b)
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant Database Moderator Plant Identifier Region: Nebraska Celebrating Gardening: 2015
Forum moderator Garden Sages Garden Ideas: Master Level Irises Million Pollinator Garden Challenge
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KentPfeiffer
Feb 3, 2017 3:11 PM CST

Plants Admin

Spent rhizomes will have a circular scar at the end where the bloom stalk was. I don't replant the thinned rhizomes because the plants I thin are usually the ones that grow so well that I don't need any more of them.

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