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Magnolia × wieseneri

Wiesener's magnolia

A spreading, deciduous shrub or small tree to 6m in height with large, leathery, bright green leaves to 20 long, glaucous beneath. In early and mid-summer, the spherical white flower buds open to deeply cup-shaped, strongly fragrant flowers to 15cm across with prominent rosy-crimson anthers and pink sepals

Synonyms

Magnolia × watsonii

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Ultimate height

4–8 metres

Time to ultimate height

10–20 years

Ultimate spread

4–8 metres

Clay

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

East–facing or South–facing or West–facing

Exposure

Sheltered

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)

Botanical details

Family: Magnoliaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Spreading branched
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
Name status: Correct

How to grow

Cultivation

It prefers moist but well drained neutral to acid soil in full sun or light shade with shelter from cold winds. Mulch in spring to keep the soil moist. For more information see magnolia cultivation advice

Propagation

Propagate by taking semi-ripe cuttings or softwood cuttings

Suggested planting locations and garden types

Architectural
Cottage and informal garden
Low Maintenance
Flower borders and beds

Pruning

Pruning Group 1. See magnolia pruning

Pests

May be susceptible to scale insects, horse chestnut scale and capsid bug

Diseases

May be susceptible to coral spot, phytophthora, grey moulds, honey fungus, a virus or fungal leaf spot

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