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Epimedium × rubrum AGM

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© RHS 1993

Characteristics

Plant type

Herbaceous Perennial

Habit

Spreading / Branched

Resilience

Hardiness

H7 (very hardy)

Colour

Flower

Dark Red and Pale Yellow in Spring

Foliage

Green in Summer
Pale Red in Spring
Red in Autumn

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

red barrenwort

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

E. × rubrum is a deciduous, rhizomatous perennial to 30cm in height, with attractive, red-tinted young foliage which colours also in autumn. Flowers 2cm in width, crimson, with creamy-yellow spurs

Synonym(s)

  • Epimedium alpinum 'Rubrum'

How to grow

Sunlight

  • Part shade

Aspect

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

Cultivation

Grow in fertile, moist but well-drained, humus-rich soil in partial shade; shelter from cold, dry winds

Soil

  • Moist but 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