• 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

Pyrus communis 'Williams' Bon Chrétien' (D/C)

pear 'Williams' Bon Chrétien'

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
pear 'Williams' Bon Chrétien'

© � RHS 2002

  • Other common names pear 'Williams' Bon Chrétien'

  • Synonyms Pyrus 'William'

  • Genus Pyrus are deciduous trees or shrubs with oval leaves and scented white flowers in spring, followed by green or brown fruits, edible in some species

  • Family Rosaceae / Rosaceae

  • Details 'Williams' Bon Chr�tien' is a dessert pear, 2.5-8m tall depending upon the rootstock. Flowers white, fruit yellow-green with a good flavour

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)
    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

    H6

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered

Soil

  • Chalk

    Loam

  • Chalk

    Clay

  • Chalk

    Sand

  • MoistureWell-drained, Moist but well-drained

  • SoilLoam, Clay, Sand

  • pHNeutral

Size

  • Ultimate height

    4-8 metres

  • Ultimate spread

    4-8 metres

  • Time to ultimate height

    5-10 years

How to grow

Cultivation Suitable for all training forms. Flowers early and so at risk from spring frosts. Needs another cultivar for pollination. Keep a weed free area of 60cm radius around the trunk. Thin fruits if necessary

Propagation Propagate by grafting or budding onto a clonal rootstock; quince rootstocks are usually used. The rootstock used will effect plant size

Suggested planting locations and garden types Architectural Cottage & Informal Garden

How to care

Pruning Regular pruning required; a spur bearer

Pests May be attacked by aphids, caterpillars, codling moth, bullfinches, gall midges and blister mites

Diseases Susceptible to pear scab

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