I have seen a deer nip off an Arisaema flower that was potted and placed beside a window. Ones in the garden have not been eaten, though, and I suspect that the deer was just reacting to my staging of the one in flower. Seedling arisaemas have not been eaten - these are usually in the greenhouse, and I make efforts to keep it rat-free. Any hellebores that I pot and keep in a hoophouse get eaten by rats - flowers, and young leaves. Ones in the garden don't seem to be touched. Diane Whitehead Victoria, British Columbia, Canada maritime zone 8, cool Mediterranean climate mild rainy winters, mild dry summers