Sounds like they are doing just fine. The buds take a long time to get to the opening stage. That was the first thing I learned about lilies! My largest Sche. bud is only 2.5 inches long (yes, I just went out and measured it to give you an idea). I think it is still a couple of weeks from opening. They will start to show color change on the outside of the bud before opening; mine are all green. Next year your Sche. will be taller; first season lilies are always shorter. Your location is just fine. You don't need to water them that often. Once a week or when obviously dry should do it. You will be impressed when Sche. blooms for you.

Thanks pardalinum ! I feel so much better already. I will keep track of their progress daily patiently. I guess I'll just have to make do with my gladiolus that are just starting to bloom.