Helleborus corsicus (Holly-leaved Hellebore)
Botanical Information
Family | Ranunculaceae |
Genus | Helleborus |
Species | corsicus |
Synonyms | Helleborus lividus subsp. corsicus, Helleborus argutifolius |
Category | Perennials |
Origin | Corsica and Sardinia. |
Details
USDA Hardiness Zone | 7b |
USDA Hardiness Ref. | |
Canadian Hardiness Zone | 8 |
Canada Hardiness Ref. | |
RHS Hardiness Zone | H5 |
RHS Hardiness Ref. | |
Temperature (°C) | -15 – -10 |
Height | 0.5-1 metres |
Spread | 0.5-1 metres |
Growth | Medium |
Flowering Period | February, March, April, May |
Description and Growing Information
General Description | An evergreen perennial to 1 m in height. |
Shape | Clump-forming. |
Landscape | Flower borders and woodland and natural landscapes. |
Propagation | By sowing fresh seed. |
Cultivation | Grow in neutral to alkaline soils that are moist, fertile and humus-rich. Partial shade is ideal but can tolerate full sun. |
Pests | Aphid, snails, and leaf spot. |
Notable Specimens | Trebah Garden Trust, Mawnan Smith, Falmouth, Cornwall, United Kingdom. |
Bark/Stem Description | Stems broaden slightly at the point where the flowering shoot emerges from the stem to carry a head of 20-30 flowers. |
Leaf Description | Strong stems with leaves composed of three spiny-toothed dark green leaflets. |
Flower Description | Bowl-shaped, nodding, pale green flowers 4-5 cm in width borne in large open clusters. |