• 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

Cytisus scoparius

common broom

common broom

© RHS

  • Other common names common broom
    beesom

    besom
    green broom
    Scots broom
    Scotch broom

    see more
  • Synonyms Sarothamnus scoparius

  • Family Papilionaceae

  • Genus Cytisus can be deciduous or evergreen shrubs, ranging from prostrate to erect and almost tree-like, with small, simple or 3-parted leaves and pea-like flowers spring or summer

  • Details C. scoparius is an erect deciduous shrub with slender green shoots bearing small, ternate leaves and axillary clusters of pea-like bright yellow flowers in late spring

  • Plant range Europe

Characteristics

  • Foliage Deciduous

  • Habit Columnar/Upright

  • Toxicity All parts, especially the seeds, may cause mild stomach upset if ingested

  • 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 West-facing

  • Exposure Exposed or Sheltered

Soil

  • Loam

    Loam

  • Sand

    Sand

  • MoistureWell-drained

  • SoilLoam, Sand

  • pHAcid, Neutral

Size

  • Ultimate height 1-1.5 metres

  • Ultimate spread 1-1.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in any well-drained soil in full sun; may become chlorotic on shallow chalk soils. Resents transplanting

Propagation Propagate by seed or semi-ripe cuttings in late summer

Suggested planting locations and garden types Flower borders and beds Cottage & Informal Garden Coastal Gravel Garden

How to care

Pruning Pruning group 1 or pruning group 3. Do not cut into old wood

Pests Generally pest free but may be affected by gall mites

Diseases Generally disease free

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