Helleborus odorus subsp. cyclophyllus

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<i>Helleborus</i> <i>odorus</i> subsp. <i>cyclophyllus</i> visionspictures.com

Synonyms

Helleborus cyclophyllus

Herbaceous Perennial
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Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam

Size

Time to Maturity
2–5 years

Growing Conditions

Chalk Clay Loam
Moisture
Moist but well–drained
pH
Alkaline or Neutral

Position

Full sun Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H7

Botanical Details

Family
Ranunculaceae
Native to GB/Ireland
No
Foliage
Evergreen, Semi evergreen
Habit
Bushy, Clump forming
Potentially harmful
Harmful if eaten; skin irritant. Wear gloves and other protective equipment when handling
Genus
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
Name Status
Correct
Plant Range
Greece

How to Grow

Cultivation

Thrives in neutral to alkaline soils that are moist, fertile and humus-rich. Partial shade is ideal but can tolerate full sun. Provide shelter from strong, cold winds. mulch annually in autumn. See hellebore cultivation for more details

Propagation

Propagate by division of large clumps in early spring, watering well until they are established

Suggested planting locations and garden types

  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Rock garden
  • Cut flowers
  • Flower borders and beds
  • Underplanting of roses and shrubs

Pruning

Remove old leaves to help prevent hellebore leaf spot, and deadhead to encourage more flowers

Pests

May be susceptible to slugs, snails, hellebore aphid, hellebore leaf miner, chafer grubs, vine weevil and mice

Diseases

May be susceptible to hellebore black death, hellebore leaf spot, downy mildews, grey moulds (botrytis), smuts, and virus diseases