• AGM plants

    AGM plants have been through a rigourous 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

Bougainvillea × buttiana 'Poulton's Special'

Bougainvillea 'Poulton's Special'

AGM plants

AGM plants have been through a rigourous 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
Bougainvillea 'Poulton's Special'

© � RHS 2002

  • Other common names Bougainvillea 'Poulton's Special'

  • Synonyms Bougainvillea 'Poultonii Special'

  • Genus Bougainvillea are scandent evergreen shrubs, sometimes thorny, with simple ovate leaves and clusters of small tubular flowers each enclosed by 3 showy, brightly coloured ovate bracts

  • Family Nyctaginaceae / Nyctaginaceae

  • Species 'Poulton's Special' is a evergreen climber to 5m, with ovate leaves and clusters of magenta-rose bracts surrounding small white flowers

Characteristics

  • Foliage Evergreen

  • Habit Climbing

  • 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)
    Old hardiness ratings

    While we update our systems with the new hardiness ratings you may still see old hardiness ratings in your search results. These are denoted as 'Old'.

    • H1 - Requires heated glass
    • H2 - Requires unheated glass
    • H3 - Hardy outside in some regions of the UK
    • H4 - Hardy throughout the UK
    • H1 + H3 - Requires heated glass but may be grown outside in summer

    For full details of the hardiness ratings see

    see more

    H1c

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or East-facing

  • Exposure Sheltered

Soil

  • Chalk

    Loam

  • Chalk

    Sand

  • MoistureWell-drained, Moist but well-drained

  • SoilLoam, Sand

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height

    4-8 metres

  • Ultimate spread

    1-1.5 metres

  • Time to ultimate height

    10-20 years

How to grow

Cultivation Under glass grow in loam-based potting compost in full light and water freely in summer and keep just moist in winter. Apply a balanced liquid fertiliser monthly. If container grown can be put outside in summer. Water sparingly in winter. May survive short spells down to 0 �C if kept fairly dry

Propagation Propagate by semi-hardwood cuttings in summer or softwood cuttings in early spring. Layering can be done in early autumn or spring

Suggested planting locations and garden types Wall-side Borders Patio & Container Plants

How to care

Pruning Pruning group 12 in early spring/after flowering

Pests May be attacked by glasshouse whitefly mealybugs, aphids and glasshouse red spider mite

Diseases Generally disease free

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