My neighbor gets very frustrated with all the bulbils "seeding" around from his Tiger lilies (Lilium lancifolium). Last year he asked me if he could just cut them down before the bulbils fall off. Since this lily is so vigorous, I told him to give it try, but flowering won't be as abundant the following year. He has about 50 plants, and I meant for him to do it to some, but he cut them all. This year the plants look to be the same size as last, but it's too early to evaluate flowering.