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AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
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Other common names saucer magnolia Chinese magnolia
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 M. x soulangeana is a spreading deciduous tree or large shrub to 6m tall, with obovate leaves to 20cm long, and white, pink or purple, goblet-shaped flowers up to 25cm across in spring
Foliage Deciduous
Habit Bushy
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H6
Full Sun
Partial Shade
Aspect North-facing or West-facing or South-facing or East-facing
Exposure Sheltered
Clay
Loam
MoistureMoist but well-drained
SoilClay, Loam
pHAcid, Neutral
Ultimate height 4-8 metres
Ultimate spread 4-8 metres
Time to ultimate height 20-50 years
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. Further magnolia cultivation advice
Propagation Propagate by seed in autumn and spring, by softwood cuttings from late spring to early summer or semi-ripe cuttings from late summer to autumn
Suggested planting locations and garden types Flower borders and beds Cottage & Informal Garden City & Courtyard Gardens
Pruning Magnolia pruning should be carried out in midsummer when in full leaf
Pests May be damaged by scale insects, capsid bug and horse chestnut scale
Diseases May be affected by coral spot, grey moulds, honey fungus, a virus, fungal leaf spot or iron deficiency and lime-induced chlorosis
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
saucer magnolia
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