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Epimedium × versicolor 'Sulphureum' AGM

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© RHS 1999

Characteristics

Plant type

Herbaceous Perennial

Habit

Spreading / Branched

Resilience

Hardiness

old H4 (hardy)

Colour

Flower

Pale Yellow in Spring

Foliage

Green in Autumn and Summer
Red and Pale Green in Spring

Size

Ultimate height

0.1-0.5 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

bishop's hat 'Sulphureum'

Family

Berberidaceae


Epimedium are rhizomatous perennials with evergreen or deciduous, ternately or pinnately divided leaves, and open sprays of small, bowl-shaped flowers, often with prominent spurs, in mid to late spring

'Sulphureum' is a deciduous perennial to 35cm in height, forming a clump of red-tinted, light green leaves. Primrose-yellow flowers 2cm in width are carried in open sprays

Synonym(s)

  • Epimedium macranthum 'Sulphureum'
  • Epimedium sulphureum
  • Epimedium × youngianum 'Sulphureum'

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • East-facing, North-facing, West-facing or South-facing
  • Sheltered

Cultivation

Grow in fertile, moist but well-drained, humus-rich soil in partial shade; shelter from cold, dry winds. Can tolerate full sun and slightly drier soils.

Soil

  • Moist but well-drained or Well-drained
  • Acid or Neutral
  • Sand, Loam or Chalk

Propagation

Propagate by division in autumn or after flowering

Suggested planting locations and garden types

Banks and Slopes, Flower borders and beds, Ground Cover, Rock Garden or Underplanting of Roses and Shrubs


How to care

Pruning

Cut back old foliage in late winter or early spring for the best display of new foliage and flowers

Pests

Prone to vine weevils

Diseases

May be affected by a virus