This is interesting (because I'm surprised). I've never known hosta to actually die. If one plant slows down, a LOT take over. We even used round-up on them one year because we wanted them removed from one area where we were planting lilies and pulling them out didn't work. Nope, those little hosta kept popping up that grew into big hosta.
I wanted to let you know that I've never seen hosta actually not make it, so stay hopeful!!! If you have around 400, I'm bet it's beautiful!
