• 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

Magnolia × loebneri 'Leonard Messel'

Magnolia 'Leonard Messel'

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
Magnolia 'Leonard Messel'

© � RHS 2002

  • Other common names Magnolia 'Leonard Messel'

  • Genus Magnolia can be deciduous or evergreen trees or shrubs, with large, showy, often fragrant flowers, often opening before the leaves, and sometimes followed by colourful cone-like fruit

  • Family Magnoliaceae / Magnoliaceae

  • Species 'Leonard Messel' is a vigorous medium-sized deciduous shrub or small tree, with narrowly ovate leaves to 12cm in length. Flowers lilac-pink, paler within, scented, to 10cm in width, with about twelve narrow tepals, and opening before the leaves

Characteristics

  • Foliage Deciduous

  • Habit Spreading _ Branched#Spreading / Branched

  • Fragrance Flower

  • 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

Soil

  • Chalk

    Loam

  • Chalk

    Clay

  • Chalk

    Sand

  • MoistureWell-drained, Moist but well-drained

  • SoilLoam, Clay, Sand

  • pHAcid, Neutral

Size

  • Ultimate height

    4-8 metres

  • Ultimate spread

    4-8 metres

  • Time to ultimate height

    20-50 years

How to grow

Cultivation Grow in moist but well-drained neutral to acid soil in full sun or part shade with shelter from cold winds. Late frosts may damage flower buds. Will grow in moist alkaline soils. Further magnolia cultivation advice

Propagation Propagate by softwood cuttings in early summer or semi-hardwood cuttings in late summer

Suggested planting locations and garden types Cut Flowers Low Maintenance Architectural City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants

How to care

Pruning Magnolia pruning should be carried out in midsummer when in full leaf

Pests May be damaged by horse chestnut scale, snails and capsid bug

Diseases May be affected by coral spot, grey mould, honey fungus, a virus and fungal leaf spot

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