• 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

Viburnum carlesii

Koreanspice viburnum

  • Other common names Koreanspice viburnum
    arrowwood

  • Family Adoxaceae

  • Genus Viburnum can be deciduous or evergreen shrubs with opposite, simple or palmately lobed leaves and clusters of small, often fragrant white or pink flowers, followed by red, blue or black berries

  • Details V. carlesii is a dense, bushy, deciduous shrub, to 2m high and wide, with ovate, toothed dark-green leaves, up to 10cm long, that often turn red in autumn. Rounded clusters of white, fragrant flowers emerge from pink buds in spring and are followed by black fruits

  • Plant range Korea, Japan

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • Fragrance Flower

  • Toxicity Fruits may cause a mild stomach upset if ingested. Wear gloves and wash hands after handling

  • 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 Shade

  • Full Sun

  • Partial Shade

  • Aspect North-facing or East-facing or South-facing or West-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 1.5-2.5 metres

  • Ultimate spread 1.5-2.5 metres

  • Time to ultimate height 10-20 years

How to grow

Cultivation Grows well in most moderately fertile, humus-rich, well-drained soils

Propagation Propagate by softwood cuttings in summer, semi-ripe cuttings from midsummer to autumn or hardwood cuttings in winter

Suggested planting locations and garden types Flower borders and beds Low Maintenance City & Courtyard Gardens Cottage & Informal Garden Coastal

How to care

Pruning Pruning group 8 after flowering. Can be hard pruned successfully in late spring

Pests May be affected by viburnum aphids and viburnum beetle

Diseases May be affected by leaf spot and honey fungus

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