• AGM plants

    AGM plants have been through a rigorous 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

Genista aetnensis

Mount Etna broom

AGM plants

AGM plants have been through a rigorous 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
Mount Etna broom

© RHS 2001

  • Other common names Mount Etna broom

  • Family Papilionaceae

  • Genus Genista are deciduous, sometimes spiny, shrubs or small trees with small, simple or trifoliate leaves and solitary, racemose or clustered, pea-like yellow flowers which are sometimes fragrant

  • Details G. aetnensis is a large deciduous shrub or small tree of evergreen appearance, with slender, arching green shoots and small, sparse leaves. Flowers bright yellow, fragrant, pea-shaped, very abundant in mid- and late summer

  • Plant range Sicily, Sardinia

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • Fragrance Flower

  • 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)

    H5

Colour

Sunlight

  • Full Sun

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

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Chalk

  • Clay

    Clay

  • Sand

    Sand

  • Loam

    Loam

  • MoistureWell-drained

  • SoilChalk, Clay, Sand, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 4-8 metres

  • Ultimate spread 4-8 metres

  • Time to ultimate height 10-20 years

How to grow

Cultivation Grow in poor but well-drained soil in full sun

Propagation Propagate by seed or semi-hardwood cuttings

Suggested planting locations and garden types Low Maintenance Banks and Slopes Hedging & Screens Drought Resistant

How to care

Pruning Pruning group 1. Will not tolerate hard pruning. New growth will not rejuvenate from old wood

Pests Prone to aphids

Diseases Generally disease free

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