This grower is fairly sure of this plant identification.
Helleborus argutifolius (Hellebore). This species of perennial herb will produce lance-shaped to elliptical dark green leaves. The flowers are produced in terminal cymes of pale yellow-green small blooms in the winter to spring.
You will need to grow in heavy soil with a little shade.
Grown for their winter and spring flowers.
Italics = data drawn from parent genus or speciesView Full Plant Finder Record