• AGM plants

    AGM plants have been through a rigourous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Berberis × ottawensis f. purpurea 'Superba'

Barberry 'Superba'

Barberry 'Superba'

© � RHS 1997

  • Other common names Barberry 'Superba'

  • Synonyms Berberis thunbergii 'Atropurpurea Superba'
    Berberisottawensis 'Superba'

  • Genus Berberis can be deciduous or evergreen shrubs with spiny shoots bearing simple, often spine-toothed leaves, and small yellow or orange flowers in axillary clusters or racemes, followed by small berries

  • Family Berberidaceae / Berberidaceae

  • Species 'Superba' is a vigorous spiny medium-sized deciduous shrub with lax, arching branches. Leaves broadly oval, deep red-purple, brighter red in autumn. Flowers small, light yellow, berries bright red

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • Toxicity Ingestion may cause mild stomach upset

Colour

Sunlight

  • Full Sun

  • Partial Shade

  • Aspect North-facing or East-facing or West-facing

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Sand

  • Chalk

    Chalk

  • Chalk

    Clay

  • Chalk

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilSand, Chalk, Clay, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height

    1.5-2.5 metres

  • Ultimate spread

    1.5-2.5 metres

  • Time to ultimate height

    10-20 years

How to grow

Cultivation Grows in any well-drained soil in full sun or partial shade

Propagation Propagate by semi-hardwood cuttings or seed

Suggested planting locations and garden types Banks and Slopes Flower borders and beds Hedging & Screens Low Maintenance City & Courtyard Gardens Coastal Cottage & Informal Garden

How to care

Pruning Pruning group 8

Pests Generally pest free

Diseases May be subject to powdery mildews

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