Good job on giving it a chance to grow and bloom again.
I map everything and keep copious amounts of information on each iris. where, when, what, who and so on. I pot the iffy ones and I also pot ones that are rare or special. They grow well in pots for me and most can get transplanted into the garden in a couple of years. I have some excess irises that I love and keep some in pots just so I can move them up close to the walkway or deck during bloom season. I also grow the little MDB's and they do not like the heat where I live so I keep them in pots and move them to the north slope over winter and give them evening shade during the summer. So far I have not lost one MDB. (patting myself on the back here, LOL)
I don't have much problem with rot.... perhaps one or two a year on new ones. But since I live on a hill I have excellent drainage. I also do not over fertilize. Losing irises would make me really sad.
