In the past, I've had a few favorite Iris bloom nicely, then suddenly be GONE! I've since learned to cut bloomed stalks down to the rhizome & occasionally no new fans are present..which could lead to what I've heard as "bloom out"
In fact, I was sad a few favorites didn't bloom this year, but looking closer, realized only ONE fan..so thankful it was "smart enough" not to bloom!
My question- is there some fertilizer that can be used after bloom season that will actively encourage new fan's growth???
My Kathy Chilton will be gone if new fans don't happen this summer. Any suggestions greatly appreciated 🙂

Moved to the Iris forum.

Use a low nitrogen fertilizer. We like 5-10=10. Fertilize before & after bloom if possible.

When I see an iris rhizome with a bloom and no new fans, I add a bit of osmocote around it. This has always worked for me. Sometimes it takes a month or 2 to see new growth.

Robin, I will try that! Thanks for the tip.

I had been told to cut the stem (before flowering) to start the increases coming. I had to do it long ago on 'Chanted' when it first came out. Broke my heart, but it worked & I had a good clump the following year.