Epimedium × rubrum

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hybrid red barrenwort

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hybrid red barrenwort RHS 1993
hybrid red barrenwort visionspictures.com
hybrid red barrenwort visionspictures.com

Synonyms

Epimedium alpinum 'Rubrum'

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Herbaceous Perennial
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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

Position

Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Loam Sand
Moisture
Moist but well–drained
pH
Acid or Neutral

Position

Partial shade
Aspect
North–facing or West–facing or East–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

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Berberidaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Spreading branched
Genus
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
Name Status
Correct

How to Grow

Cultivation

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

Propagation

Propagate by division in autumn or after flowering

Suggested planting locations and garden types

  • Rock garden
  • Banks and slopes
  • Flower borders and beds
  • Ground cover
  • Underplanting of roses and shrubs

Pruning

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

Pests

May be susceptible to vine weevil

Diseases

May be susceptible to a virus