I have no idea what wrong, but obviously something did.
So as I was cleaning up spent bloom stalks and removing the dead growth on my TB irises today, I noticed that quite a few irises had died. I don't know what happened, but even some of the irises that bloomed this year, the rhizome was shriveled up.
They were/are planted with the top of the rhizome at the soil surface. They were soaked in 10% bleach and rinsed and let dry before planted. I mixed a small amount of bone meal into the soil before planting. Everything was looking fine, so what happened?
It was a sad day for this garden lover, that's for sure.
Any advice will be greatly appreciated.