Helleborus corsicus (Holly-leaved Hellebore)


Botanical Information

FamilyRanunculaceae
GenusHelleborus
Speciescorsicus
SynonymsHelleborus lividus subsp. corsicus, Helleborus argutifolius
CategoryPerennials
OriginCorsica and Sardinia.

Details

USDA Hardiness Zone7b
USDA Hardiness Ref.
Canadian Hardiness Zone8
Canada Hardiness Ref.
RHS Hardiness ZoneH5
RHS Hardiness Ref.
Temperature (°C)-15 – -10
Height0.5-1 metres
Spread0.5-1 metres
GrowthMedium
Flowering PeriodFebruary, March, April, May

Description and Growing Information

General DescriptionAn evergreen perennial to 1 m in height.
ShapeClump-forming.
LandscapeFlower borders and woodland and natural landscapes.
PropagationBy sowing fresh seed.
CultivationGrow in neutral to alkaline soils that are moist, fertile and humus-rich. Partial shade is ideal but can tolerate full sun.
PestsAphid, snails, and leaf spot.
Notable SpecimensTrebah Garden Trust, Mawnan Smith, Falmouth, Cornwall, United Kingdom.
Bark/Stem DescriptionStems broaden slightly at the point where the flowering shoot emerges from the stem to carry a head of 20-30 flowers.
Leaf DescriptionStrong stems with leaves composed of three spiny-toothed dark green leaflets.
Flower DescriptionBowl-shaped, nodding, pale green flowers 4-5 cm in width borne in large open clusters.

Photographs