My lilies are always planted close and it never seems to hurt anything. I have moved lilies right after they flower many times, bulb and stems and all but waiting would probably be better.
It seems I always manage to get into a project in the garden. Here is the area my daylilies came out of and that I will plant tomato seedlings.
And here is the stuff sitting around that now has to get replanted someplace new.
cucumber row were I was working yesterday
from the back
And here you can see the fence posts and string tied so the cucumbers can climb
