No, I don't but then I'm lazy, actually not so much lazy as leary. I don't have a lot of good lily growing spots in my normally heavy wet clay yard. So if I have a place, or manage to create an environment that they like enough to spread in - I leave them alone. I don't move my lilies until they are a giant mess, pushing themselves up and out of the ground sort of like a volcano - that or if they stop blooming, which they usually don't.

I nearly had a heart attack last year when some fairly large rodent-like thing made an underground nest in one of the few areas of yard with loose soil and raised up a large daylily and a big clump of LA Hybrid lilies out of the ground. Well I replanted the lilies (way too shallowly as I later learned here - I planted them at the level they were, but apparently they were so crowded that they had grown all topsy turvy on top of themselves) and had to go out into the cold in late fall and pile mounds of mulch on top of them. Anyway they all made it through the winter and are living nicely all along the fence - don't think I'll wait quite that long the next time to divide my lilies. LOL

note to Leslie..what I want to know is what happened to the "FAIRLY LARGE RODENT LIKE THING". groundhog. I move my Lilies all over the place. At least the new ones. The originals I never move. Either way they will bloom wherever you have them.

I have no idea. Rodent thing just left its den empty and disappeared. Hole was a good 3 ft in diameter and sort of lined inside with some sort of soft silky stringy stuff. Looked like a nest for baby rodent things.

The top of the hole was folded back like an attached box lid & the plants which included tall lily stalks (long finished blooming) and one established daylily were lying almost parallel to the ground still stuck together. You know what clay soil looks like in August! The sprinkler line which ran underneath this bed to the lawn was also chewed up and had to be repaired.

I didn't want to replant in this area in case it returned, so this spring I moved a large patch of Knautia macedonica (always get lots of seedlings from these) into that area. Figured it was easily replaceable.