This spring I watched with eager anticipation for several of the lilies I've planted over the years. The most dependable, the large trumpet lilies, were among the first to emerge and everything looked great. One of the lilies, however, seemed to be struggling - the lower leaves were black and dropped off. Today I noticed the whole plant seems to have died.
Does anyone have a clue as to what's going on? None of the others seem to have the same problems - if it's a disease, I want to keep it from spreading. I'd appreciate the input from those of you who have more experience.