• 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

Fothergilla major

mountain witch alder

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
  • Other common names mountain witch alder

  • Genus Fothergilla are rounded deciduous shrubs with broadly ovate leaves often colouring well in autumn, and small, catkin-like spikes of white flowers in spring

  • Family Hamamelidaceae / Hamamelidaceae

  • Details F. major is a compact medium-sized deciduous shrub to 2m, with glossy, broadly oval leaves glaucous beneath and turning brilliant red and orange in autumn. Flowers small, white, in short spikes before or with the leaves

  • Plant range SE USA

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

    H5

Colour

Sunlight

  • Full Sun

  • Partial Shade

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

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Loam

  • Chalk

    Clay

  • Chalk

    Sand

  • MoistureMoist but well-drained

  • SoilLoam, Clay, Sand

  • pHAcid

Size

  • Ultimate height

    1.5-2.5 metres

  • Ultimate spread

    1-1.5 metres

  • Time to ultimate height

    10-20 years

How to grow

Cultivation Grow in a humus-rich, moist but well-drained acid soil in sun or partial shade

Propagation Propagate by seed or softwood cuttings

Suggested planting locations and garden types Low Maintenance Cottage & Informal Garden

How to care

Pruning Pruning group 1

Pests Generally pest free

Diseases Generally disease free

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