I am sorry for this delayed reply to your gardening question. We are transitioning to a new Q&A system and your question was unfortunately lost in the transition. I have discovered it now and hope this reply is not too late to be of help.
Iris can be picky that way. Give them a little more time. Sometimes they bloom better when a little crowded. Fertilize them moderately...not too much. Make sure they are getting lots of sun.
I hope this helps and your irises are blooming again soon!
Thanks for the question. Please stop in again soon!
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