Shoot. I wish I had read this before planting my new lilies. Orienpets. Lost all of mine this spring. Drat. So replaced them. I really need to cover them but am unsure with what. Whole leaves are not recommended as they ice up and can be a bear to remove in spring. I know that I have to wait for frozen ground (which is fast occurring) before mulching. I wonder how roofing shingles would work