When / How to trim ???

lagrangeny(z6 NY)August 1, 2005

Have afew iris plants.

Blooms are done....dead blooms remain.

Cut the bloom stalk down ? When ? How much ?

Regular leaves.....cut down when and how much ?

Anything to do to maybe get some more flowers next year ???

Thank you !!!

Have a great day !!!

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brimmsplace(zn6 tennessee)

Cut the bloom stalk down as soon as the flowers are finished. As far as the foliage is concerned, I usually cut mine back to about 6-8 in. in a fan shape. However, now is not too late. As far as more blooms for next year, make sure your clumps are not over crowded. I find my iris's bloom better every year for about 4-5 years and then need dividing. I fertilize with super phosphate around Thankgiving. Good Luck!

    Bookmark   August 1, 2005 at 10:01PM
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iris_gal(z9 CA)

I don't cut the foliage unless it is diseased. I pull away outer leaves that have/are dying. The leaves are producing nutrients for the rhizomes.

If you have vigorous growers, leaf trimming may not affect bloom. I haven't seen a definative report. Low nitrogen fertilizer will not encourage leaf growth at the expense of bloom. Some commercial growers apply it 6 weeks prior to bloom.

    Bookmark   August 2, 2005 at 3:01AM
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