• 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

Magnolia × soulangeana 'Brozzonii'

saucer magnolia 'Brozzonii'

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 saucer magnolia 'Brozzonii'

  • Synonyms Magnolia × brozzonii

  • Family Magnoliaceae

  • 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

  • Details 'Brozzonii' is a large spreading deciduous shrub flowering before the ovate leaves open. Flowers white, tinged purple at the base outside, up to 20cm in width, opening in mid and late spring

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 North-facing or West-facing or East-facing

  • Exposure Sheltered

Soil

  • Clay

    Clay

  • Loam

    Loam

  • Sand

    Sand

  • MoistureMoist but well-drained, Well-drained

  • SoilClay, Loam, Sand

  • pHAcid, Neutral

Size

  • Ultimate height 4-8 metres

  • Ultimate spread 4-8 metres

  • Time to ultimate height 10-20 years

How to grow

Cultivation Grow in moist, humus-rich, well-drained neutral to acid soil in full sun or part shade with shelter from cold winds. Late frosts may damage flower buds. 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 Low Maintenance Wall-side Borders City & Courtyard Gardens Cottage & Informal Garden

How to care

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

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

Diseases May be affected by coral spot, grey moulds, honey fungus, a virus, fungal leaf spot or iron deficiency and lime-induced chlorosis

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