Bad lily location??
Take a look at these...planted last spring next to a driveway in Central TX that gets a lot of sun and gets HOT. Thought the lilies would do o.k. if I kept them watered, but maybe I didn't do enough? Originally they were twice this size and bloomed, but eventually retreated to what you see here. I had 5 originally (one had died/disappeared).
I have a drip system here that is capable of keeping these things pretty wet - is it possible they stayed too wet? Is that possible with lilies?? Thanks for any ideas/thoughts. Will post a couple of follow-up pictures too.