• 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

Sorbus reducta

Chinese dwarf mountain ash

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
Chinese dwarf mountain ash

© RHS 2002

  • Other common names Chinese dwarf mountain ash

  • Family Rosaceae

  • Genus Sorbus can be deciduous trees or shrubs with simple or pinnate leaves and clusters of small white or pink flowers, followed by white, yellow, pink, red or brown berries; some have fine autumn colour

  • Details S. reducta is a dwarf, suckering deciduous shrub with leaves composed of up to 15, toothed, glossy dark green leaflets, turning purple in autumn. Small clusters of white flowers are followed by pink to white fruits

  • Plant range China Myanmar

Characteristics

  • Foliage Deciduous

  • Habit Suckering

  • 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

  • Partial Shade

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

  • Exposure Exposed or Sheltered

Soil

  • Clay

    Clay

  • Sand

    Sand

  • Loam

    Loam

  • Chalk

    Chalk

  • MoistureWell-drained, Moist but well-drained

  • SoilClay, Sand, Loam, Chalk

  • pHAcid, Neutral

Size

  • Ultimate height 1-1.5 metres

  • Ultimate spread 1-1.5 metres

  • Time to ultimate height 10-20 years

How to grow

Cultivation Grow in moderately fertile, humus-rich soil. Tolerant of atmospheric pollution

Propagation Propagate by softwood cuttings in early summer, chip budding in summer or grafting in winter. Propagate by seed sown outdoors in autumn

Suggested planting locations and garden types Flower borders and beds Low Maintenance Ground Cover Banks and Slopes Cottage & Informal Garden Rock Garden Wildlife Gardens

How to care

Pruning Pruning group 1

Pests May be attacked by aphids, blister beetles, glasshouse red spider mite, scale insects and sawflies

Diseases Susceptible to silver leaf, honey fungus, fireblight and a canker

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