In ten years, the deer have only once nibbled back the early spring sprouts, but the plant still bloomed! The deer know all plant parts could cause mild stomach upset (though in fall the leaves must lose their resistance and the deer sometimes help me "cut" mine back for winter)! Who can resist a late-spring bouquet of peonies? Plant where they will be undisturbed as they take a few years to reach their grand potential. Long-lived perennial.