How to Prune American hellebore?
No pruning required

American hellebore · Veratrum viride
Also known as: bear cabbage; crow poison; green false helleborine; itchweed; meadow poke; North American white hellebore; pokeroot; puppet root; swamp hellebore; wild hellebore; earth gall; green hellebore; Indian poke; pepper root
Grow in a sheltered position in rich, deep, humus-rich, moist but well-drained soil, in partial shade; will grow in full sun if the soil is moist, but the foliage will be healthiest in shade
No pruning required