I know this is an old thread, but thank you so much for the information that ALL of you have provided in it! I have three prolifs of various sizes (although all small and I don't think any have roots) on stalks that are in various stages of turning brown. I really don't think any of them are going to develop roots before the stalks completely die off, so I'm glad that there was information in here about how to handle that situation.
Dumb question about prolifs: Are they exactly the same as the parent plant?
I know with trees, many of the new cultivars come from "witches brooms", or mutated versions of the tree growing on itself. Is that the same thing that is going on with proliferations of daylilies? Or are they genetically identical?