• 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

Xanthoceras sorbifolium

shinyleaf yellowhorn

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
shinyleaf yellowhorn

© RHS 1998

  • Other common names shinyleaf yellowhorn
    yellow horn

  • Family Sapindaceae

  • Genus Xanthoceras are upright deciduous shrubs with pinnate leaves and erect panicles or racemes of star-shaped wite flowers in late spring

  • Details X. sorbifolium is an upright, medium-sized deciduous shrub with bright green pinnate leaves composed of narrow, toothed leaflets. Red-centred, white flowers 2.5cm in width are borne in erect panicles to 20cm in length in late spring

  • Plant range N China

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • 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 East-facing

  • Exposure Sheltered

Soil

  • Chalk

    Sand

  • Chalk

    Chalk

  • Chalk

    Loam

  • MoistureWell-drained

  • SoilSand, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 2.5-4 metres

  • Ultimate spread 1.5-2.5 metres

  • Time to ultimate height 10-20 years

How to grow

Cultivation Grow in fertile well-drained soil in full sun, grows best in areas with very hot summers. In frost prone climates, provide shelter from cold drying winds in winter

Propagation Propagate by seed, take root cuttings or remove rooted suckers

Suggested planting locations and garden types Flower borders and beds Wall-side Borders City & Courtyard Gardens

How to care

Pruning Pruning group 1

Pests Generally pest free

Diseases May be subject to a leaf spot

Advertise here

Did you find the information you were looking for?

RHS members can get exclusive individual advice from the RHS Gardening Advice team.

Join the RHS now