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Pruning Iris plants

Should I cut my iris blades to about 6 or 7 inches after the blooming season to preserve nutrients for the rhizomes? Or is that done only when separating and transplanting?
Submitted by BHGPhotoContest

Leave your iris blades alone until late September. At that time you can cut them back into a fan shape so they don't flop over during the winter. Leave them alone till then so they can help the plant build up strength for next year.

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