Mine are voles. I have learned to find what they did not eat and plant that again. My hosta bed is gone, only to find a few sprout up here and there I am happy each year if my lilies come back..lol
I have a small trillium. We had the grandiflora in the garden while I was a child. I am very fond of them. Need to order a jack in the pulpit--the North American one.