• 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

Amelanchier lamarckii

Snowy mespilus

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
Snowy mespilus

© � RHS

  • Other common names Snowy mespilus
    Juneberry

  • Synonyms Amelanchier botryapium DC. non (L. f.) Borkh.
    Amelanchier canadensis K. Koch

    Amelanchier canadensis var. botryapium
    Amelanchier confusa Schmeil & Fitschen non Hylander.
    Amelanchier laevis
    Amelanchier laevis f. villosa

    see more
  • Genus Amelanchier are small deciduous trees or shrubs with showy white flowers in early spring, red to purple fruits and often good autumn colour

  • Family Rosaceae / Rosaceae

  • Species A. lamarckii is a large erect deciduous shrub or small tree of open habit, with bronze-tinged young leaves turning orange and red in autumn. White flowers in short erect racemes. Fruit a red to purple berry, soon eaten by birds

  • Plant range E Canada

Characteristics

  • Foliage Deciduous

  • Habit Columnar_Upright#Columnar/Upright

  • 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

  • Partial Shade

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

  • Exposure Sheltered or Exposed

Soil

  • Chalk

    Clay

  • Chalk

    Sand

  • MoistureWell-drained, Moist but well-drained

  • SoilClay, Sand

  • pHAcid, Neutral

Size

  • Ultimate height

    8-12 metres

  • Ultimate spread

    4-8 metres

  • Time to ultimate height

    10-20 years

How to grow

Cultivation Grow in moist, lime free, well-drained soil. The best autumn colour is achieved when grown in full sun

Propagation Propagate by seed and semi-hardwood cuttings

Suggested planting locations and garden types Hedging & Screens Low Maintenance City & Courtyard Gardens Wildlife Gardens

How to care

Pruning Pruning group 1

Pests Generally pest free

Diseases Fireblight may be a problem

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