• 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

Rhus typhina Radiance = 'Sinrus'

stag's horn sumach [Radiance]

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
  • Other common names stag's horn sumach [Radiance]

  • Synonyms Rhus typhina 'Sinrus'
    Rhus typhina 'Radiance'

  • Family Anacardiaceae

  • Genus Rhus can be deciduous or evergreen shrubs or trees with simple, pinnate or palmately-divided leaves often colouring brilliantly in autumn, and inconspicuous yellow flowers in spring or summer, followed by small, spherical red fruits in dense clusters

  • Details [Radiance] is a large, suckering shrub or small tree with stiff branches, velvety when young. The large, elegant leaves with numerous leaflets open salmon pink, turning yellow-green in summer, then vivid shades of red, orange and yellow in autumn

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)

    H6

Colour

Sunlight

  • Full Sun

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

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Chalk

  • Clay

    Clay

  • Loam

    Loam

  • Sand

    Sand

  • MoistureMoist but well-drained

  • SoilChalk, Clay, Loam, Sand

  • 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 moist but well-drained soil in full sun to obtain best autumn colour. Suckering in habit and is a potential nuisance plant

Propagation Propagate by semi-hardwood cuttings

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

How to care

Pruning Pruning group 7; sucker removal may be necessary, in winter

Pests Generally pest free

Diseases May be subject to coral spot and verticillium wilt

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