• 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

Camellia japonica 'Konronkoku'

camellia 'Konronkoku'

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
camellia 'Konronkoku'

© Wolfgang Bopp

  • Other common names camellia 'Konronkoku'

  • Synonyms Camellia japonica 'Black Prince'
    Camellia japonica 'Kouron-jura'

    Camellia japonica 'Nigra'

    see more
  • Family Theaceae

  • Genus Camellia are evergreen shrubs with simple, ovate, glossy, leathery leaves and showy flowers with solitary or clustered flowers early in the year

  • Details 'Konronkoku' is a cultivar that bears rich red, double flowers, around 10cm across, in later spring. It makes an upright, dense shrub

Characteristics

  • Foliage Evergreen

  • 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

  • Partial Shade

  • Aspect West-facing or North-facing

  • Exposure Sheltered

Soil

  • Sand

    Sand

  • Clay

    Clay

  • Loam

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilSand, Clay, Loam

  • pHAcid, 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 Suitable for woodland and acidic soils. Although hardy, position in a site sheltered from cold, dry winds and early morning sun as buds and flowers may be damaged by cold winds and late frosts. See camellia cultivation

Propagation Propagate by semi-hardwood cuttings

Suggested planting locations and garden types Wall-side Borders Low Maintenance Flower borders and beds

How to care

Pruning Pruning group 8

Pests May be attacked by aphids, scale insects and vine weevil

Diseases May be subject to a virus

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