This grower is fairly sure of this plant identification.
Helleborus orientalis var. orientalis (Hellebore). An evergreen, clump-forming perennial producing, dense, divided, medium green leaves. Cup-shaped, nodding flowers coloured white, purple or pink are borne in mid-winter or early spring.
Watch out it is poisonous and allergenic.
Shade, naturaliser, under shrubs, borders. Winter/Spring interest.
Italics = data drawn from parent genus or speciesView Full Plant Finder Record