• 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

Sambucus nigra f. porphyrophylla 'Gerda' (PBR)

Elder 'Gerda'

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
Elder 'Gerda'

© � RHS 2002

  • Other common names Elder 'Gerda'

  • Synonyms Sambucus nigra 'Black Beauty'

  • Genus Sambucus can be herbaceous perennials, deciduous shrubs or small trees, with pinnate leaves and umbels or panicles of small creamy-white flowers followed by red, white or black berries

  • Family Adoxaceae / Adoxaceae

  • Species 'Gerda' is a deciduous shrub or small tree, with deep purple foliage from spring to autumn and flat heads of small, pinkish-purple flowers, followed by purple-black berries

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • Fragrance Flower

  • Toxicity All parts may cause discomfort if ingested although the berries can be edible if cooked

  • 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)
    Old hardiness ratings

    While we update our systems with the new hardiness ratings you may still see old hardiness ratings in your search results. These are denoted as 'Old'.

    • H1 - Requires heated glass
    • H2 - Requires unheated glass
    • H3 - Hardy outside in some regions of the UK
    • H4 - Hardy throughout the UK
    • H1 + H3 - Requires heated glass but may be grown outside in summer

    For full details of the hardiness ratings see

    see more

    H6

Colour

Sunlight

  • Full Sun

  • Partial Shade

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

  • Exposure Sheltered or Exposed

Soil

  • Chalk

    Chalk

  • Chalk

    Clay

  • Chalk

    Sand

  • Chalk

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilChalk, Clay, Sand, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height

    2.5-4 metres

  • Ultimate spread

    2.5-4 metres

  • Time to ultimate height

    10-20 years

How to grow

Cultivation Easy to grow in moderately fertile, humus-rich, moist but well-drained soils and also thrives on extremely chalky sites

Propagation Propagate by softwood or hardwood cuttings

Suggested planting locations and garden types Low Maintenance Hedging & Screens Coastal Wildlife Gardens

How to care

Pruning Pruning group 1. Will tolerate hard pruning to restrict the size

Pests Can get blackfly and glasshouse red spider mite

Diseases May be subject to verticillium wilt

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