I have a daylily that starts new plants from a flower stem. I have not seen this from any of my other 15 or so plants. Could you tell me what might be going on?
When you say “starts new plants from a flower stem,” do you mean a new baby plant develops atop the flower stem (similar to a multiplier onion)? If so, this could be caused by the seeds sprouting in the pod, which does sometimes happen with daylilies. There is also a phenomenon Diana Grenfell (author of The Gardener’s Guide to Growing Daylilies, Timber Press, 1998) terms ‘proliferations:’ “Proliferations are small fans of leaves occurring on the scapes,” [i.e., the flowering stalks] “usually where there is a node or bract just below the point where the scape branches. On some daylilies these proliferations can develop into baby plants…In theory, if the rooting part of the proliferation can be brought into contact with soil or a growing medium, the proliferation will develop into a fully fledged daylily genetically identical to the parent plant.”