Genus: Magnolia

Magnolia

Photo/Illustration: 
Jennifer Benner
Magnolia (Magnolia)
mag-NO-lee-ah
Magnoliaceae
These woodland trees and shrubs are native to East Asia and eastern North America. Their highly-visible, cup-, saucer-, star-, or goblet-shaped flowers often lavishly cover the naked branches of deciduous species, adding drama to the landscape; evergreen species provide a rich, green backdrop to the waxy blossoms. Magnolias bloom in a wide range from early spring through late summer. They are well-suited to groves, and naturalistic and specimen plantings.
Noteworthy characteristics:  With their showy blossoms that seem to break the long spell of winter, these glorious trees and shrubs exhibit a garden presence that radiates with visual, aromatic, and architectural qualities.
Care:  Grow in moist, well-drained, preferably acidic to neutral soil in sun or partial shade; they do not tolerate wet feet. Magnolia flowerbuds are susceptible to late-season frosts; shelter large-leaved species from windy locations. Prune trees and deciduous shrubs in late winter or late summer to prevent bleeding of sap; prune minimally to maintain a healthy framework. Minimally prune evergreen shrubs in mid-spring, trimming back to deadhead or maintain symmetry.
Propagation: 

Sow seeds in autumn or stratify to hasten germination. For deciduous magnolias, root softwood cuttings in early summer; for evergreen species, root semi-ripe cuttings from late summer through late fall. Magnolias can be layered in early spring, grafted in winter, and propagated by bud in summer.

Problems: 

Bacterial leaf spot, spot anthracnose, canker, dieback, butt rot, powdery mildew, anthracnose, fungal spots, weevils, snails, scale insects, thrips, planthoppers.

Species, varieties and clutivars for genus Magnolia

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Little Girl hybrid magnolia
Magnolia 'Ann'
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Magnolia
Magnolia 'Butterflies'
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Magnolia
Magnolia 'Elizabeth'
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Magnolia
Magnolia 'Galaxy'
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Magnolia
Magnolia 'Spectrum'
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Ashe magnolia
Magnolia ashei
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Lily tree
Magnolia denudata 'Forrest's Pink'
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Magnolia
Magnolia kobus
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Bigleaf magnolia
Magnolia macrophylla
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Oyama magnolia
Magnolia sieboldii
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Star magnolia
Magnolia stellata
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Loebner magnolia
Magnolia  × loebneri
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Loebner magnolia
Magnolia  × loebneri 'Leonard Messel'
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Loebner magnolia
Magnolia  × loebneri ‘Merrill’
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Saucer magnolia
Magnolia  × soulangeana
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Black Tulip magnolia
Magnolia  × soulangeana 'Black Tulip'