Helleborus argutifolius (holly-leaved hellebore) — Clump forming

Overview

Helleborus argutifolius is a clump forming herbaceous perennial in the genus Helleborus, part of the Ranunculaceae family, with evergreen foliage. It typically grows around 0.5-1 metres tall and 0.5-1 metres wide, reaching full size in around 2-5 years. Helleborus argutifolius grows best in full sun and partial shade, and tolerates most soils and alkaline and neutral pH. Its UK hardiness is rated H5. Suggested uses include cottage and informal garden, wildlife gardens, flower borders and beds and underplanting of roses and shrubs. It is native to Corse and Sardegna.

About

H. corsicus, H. lividus subsp. corsicus is a species of flowering plant in the family Ranunculaceae, native to Corsica and Sardinia, growing on hillsides, ravines, woodlands and roadsides. It is an evergreen perennial growing to 120 cm (47 in) tall by 90 cm (3 ft) wide, with large leathery leaves comprising three spiny-toothed leaflets, and green bowl-shaped flowers in late winter and early spring. H. argutifolius has gained the Royal Horticultural Society's Award of Garden Merit. It grows to around 0.5-1 metres tall and 0.5-1 metres wide, carrying evergreen foliage. Grow it in full sun and partial shade and most soil types. It tolerates alkaline and neutral soils, moist but well-drained conditions and south-facing, north-facing, west-facing and east-facing aspects.

Wikipedia contributors, CC BY-SA 4.0 — Helleborus argutifolius

About the genus

Commonly known as hellebores, the Eurasian genus Helleborus consists of approximately 20 species of herbaceous or evergreen perennial flowering plants in the family Ranunculaceae, within which it gave its name to the tribe of Helleboreae. Many hellebore species are poisonous.

Wikipedia contributors, "Hellebore", CC BY-SA 4.0 — Hellebore

Growing conditions

Best soil and position for Helleborus

Sunlight: Full sun, Partial shade
Soil type: Chalk, Clay, Loam
Soil pH: Alkaline, Neutral
Soil moisture: Moist but well-drained
Aspect: South-facing, North-facing, West-facing, East-facing
Exposure: Sheltered
UK hardiness: H5

Plant details

Helleborus argutifolius size, habit and characteristics

Plant type: Herbaceous Perennial
Habit: Clump forming
Foliage: Evergreen
Height: 0.5-1 metres
Spread: 0.5-1 metres
Time to full height: 2-5 years
Suggested uses: Cottage and informal garden, Wildlife gardens, Flower borders and beds, Underplanting of roses and shrubs
Native to: Corse, Sardegna
Toxicity: Toxic if ingested; may cause skin irritation

Care notes

Pruning and caring for Helleborus argutifolius

Cultivation: Grow in well-drained soil in full sun to partial shade; tolerates alkaline and neutral soils; prefers moist but well-drained conditions; suitable for sheltered locations
Pruning: Remove old leaves in late winter before new growth appears to reduce disease and improve appearance
Propagation: Seed, Division in autumn
Pest resistance: Hellebore aphid, Hellebore leaf miner, Snails
Disease resistance: Hellebore leaf spot, Hellebore black death

Frequently asked questions

How do I grow Helleborus argutifolius?

Grow in well-drained soil in full sun to partial shade; tolerates alkaline and neutral soils; prefers moist but well-drained conditions; suitable for sheltered locations.

Where is the best place to plant Helleborus argutifolius?

Helleborus argutifolius prefers full sun and partial shade. It suits sheltered positions.

What soil does Helleborus argutifolius need?

Helleborus argutifolius is adaptable and grows happily in most soil types, including chalk, clay and loam. It prefers alkaline and neutral soil. Aim for soil that stays moist but well-drained.