Veratrum nigrum is a superb plant for the shade garden. Not that much cultivated in North America though; probably the slightly longer time required to start flowering when grown from seeds has something to do with this.
Nevertheless, it is an interesting foliage plant worth growing if only for its large, pleated leaves. At maturity, a tall flowering stem erupts from the middle of the leaves rosette, carrying hundreds of lack, small flowers. Impressive!
Germination: not difficult with fresh seeds; sow in the fall (cold/moist stratification).