Magnolia x loebneri (Loebner Magnolia, Saucer Magnolia)


Botanical Information

FamilyMagnoliaceae
GenusMagnolia
Speciesx loebneri
SynonymsMagnolia kobus var. stellata, Magnolia kobus var. loebneri
CategoryWoody
TypeTree (deciduous), Shrub (deciduous)
OriginA hybrid of two Magnolia species, the Japanese Magnolia kobus and M. stellata crossed by Garteninspektor Max Löbner of Pillnitz, Germany, shortly before World War I; it first flowered in 1917.

Details

USDA Hardiness Zone4a - 8b
USDA Hardiness Ref.
Canadian Hardiness Zone5 - 9
Canada Hardiness Ref.
RHS Hardiness ZoneH6
RHS Hardiness Ref.
Temperature (°C)-34.4 - -9.4
Temperature (°F)-30 - 15
Height4 - 9 m
Spread4 - 8 metres
GrowthMedium
Flowering PeriodMarch, April, May

Description and Growing Information

General DescriptionBroadleaf deciduous shrubs or trees which result from crossing Magnolia kobus and Magnolia stellata. Such hybrids have a range of growth forms, from multi-stemmed large shrubs to single-stemmed trees 9 m tall.
ID CharacteristicThe available cultivars include: 1- ‘Ballerina’ - 3.5-6 m tall, flowers white with pinkish centers, up to 30 petals (tepals), fragrant. 2- ‘Leonard Messel’ - 8 m tall 6 m wide, flowers light pink. 3- ‘Merrill’ - to 9 m tall, flowers creamy white, fragrant. ‘Neil McEacharn’ - large shrub or small tree to 9 m, pink buds open white, flowers smaller than those many other cultivars. 4- ‘Spring Snow’ - 7.5 - 9m tree, flowers pure white, about 15 petals (tepals), fragrant.
ShapeCompact multi-stemmed small flowering tree or large shrub.
LandscapeGood used as a specimen or border shrub.
PropagationPropagate by softwood cuttings in early summer or semi-hardwood cuttings in late summer.
CultivationGrow in moist, humus-rich, well drained soils and full sun.
PestsAffected by diseases like coral spot, grey mould, honey fungus, fungal leaf spot or iron deficiency and lime-induced chlorosis. Can be damaged by horse chestnut scale, capsid bug and snails.
Notable SpecimensLanhydrock House and Garden, Bodmin, Cornwall, United Kingdom.
HabitatHorticultural origin.
Bark/Stem DescriptionThe bark is smooth and can range from brown to grey in colour.
Flower/Leaf Bud DescriptionDeep pink buds open in informal strap-like tepals with pale shell pink upper surfaces and darker pink-purple lower ones.
Leaf DescriptionAlternate, simple, similar to those of M. stellata, about 13 cm long and 5 cm wide, elliptic to oblong, dark green above and lighter green below.
Flower DescriptionWhite to lilac-pink depending on the cultivar, 10-15 cm across, from 8-30 petals. They bloom in early spring and are rather wind and frost resistant.

Photographs