• 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 'Black Worcester' (C)

pear 'Black Worcester'

pear 'Black Worcester'

© RHS

  • Other common names pear 'Black Worcester'

  • Synonyms Pyrus communis 'Black Pear of Worcester'

  • Family Rosaceae

  • 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

  • Details 'Black Worcester' is a culinary, late season cultivar with good disease resistance. Its white spring flowers are self-sterile and require a pollination partner in group 3. Fruits are dark-skinned with a pale yellow, gritty flesh and ready for harvesting in mid-autumn

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)

    H6

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered

Soil

  • Loam

    Loam

  • Clay

    Clay

  • Sand

    Sand

  • MoistureWell-drained, Moist but well-drained

  • SoilLoam, Clay, Sand

  • pHNeutral, Acid

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 including espaliers, fan-training, pyramids and cordon. Needs another pear cultivar for pollination. Keep a weed free area of 60cm radius around the trunk. Thin fruit if necessary

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

Suggested planting locations and garden types Wall-side Borders Cottage & Informal Garden

How to care

Pruning Regular pruning required, according to form: cordons, espaliers and Prune established fans. Can also be grown as standards or spindlebushes. For further guidance see: pruning new pear trees, summer pear pruning, winter pear pruning, renovating pear trees

Pests May be attacked by aphids, caterpillars, codling moth, birds, especially bullfinches, gall midges, pear and cherry slug worm and pear blister mite

Diseases Pear scab, brown rot, blossom wilt, fireblight and replant diseases may be troublesome

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