Helleborus can be rhizomatous, herbaceous or semi-evergreen perennials forming a clump of pedate basal leaves, or evergreen with erect, leafy stems. Large, bowl-shaped flowers are borne in loose clusters in late winter or spring
H. niger is a semi-evergreen perennial to 30cm, with pedately lobed, leathery, dark green leaves and 1-3 pure white or pink-flushed white, bowl-shaped flowers up to 8cm in width