• 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

Corylus maxima 'Purpurea' (F)

purple-leaved filbert

  • Other common names purple-leaved filbert

  • Synonyms Corylus maxima 'Atropurpurea'
    Corylus maxima 'Purple Filbert'

  • Family Betulaceae

  • Genus Corylus are deciduous trees and large shrubs with broad leaves, and showy male catkins in early spring, followed by edible nuts

  • Details 'Purpurea' is a large deciduous shrub to 6m, with broad, deep purple leaves to 12cm in length. Pendulous pale yellow catkins on leafless twigs in late winter are followed by edible nuts concealed by a tubular husk

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

  • Partial Shade

  • Aspect South-facing or East-facing or North-facing or West-facing

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Chalk

  • Clay

    Clay

  • Loam

    Loam

  • Sand

    Sand

  • MoistureMoist but well-drained, Well-drained

  • SoilChalk, Clay, Loam, Sand

  • pHAlkaline, Neutral

Size

  • Ultimate height 4-8 metres

  • Ultimate spread 2.5-4 metres

  • Time to ultimate height 10-20 years

How to grow

Cultivation Grows well in chalky soil in sun or partial shade. For fruit production, grow as a goblet-shaped bush. Keep clear soil in a 60cm radius around trunk

Propagation Propagate by grafting

Suggested planting locations and garden types Low Maintenance Hedging & Screens Cottage & Informal Garden Wildlife Gardens Wildflower meadow

How to care

Pruning Pruning group 1

Pests Prone to caterpillars, sawflies and aphids

Diseases Generally disease free

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