Oyama magnolia

Magnolia sieboldii

Photo/Illustration: 
Courtesy of Park Seed
Photo/Illustration: 
Steve Aitken
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Oyama magnolia (Magnolia sieboldii)
mag-NO-lee-ah see-BOLD-ee-eye
Synonyms:  M. parviflora
Genus:  Magnolia
This spreading, deciduous shrub grows 15 to 25 feet tall and blooms in late spring to late summer, with white fragrant blossoms. Site where the slightly nodding flowers with rich rose-red stamens can be seen from below. 
Care:  Grow in moist, well-drained, preferably acidic to neutral soil in sun or partial shade; magnolias 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. In warmer climates, this species prefers partial shade with a cool root zone.
Propagation:  Sow seeds in autumn or stratify to hasten germination. Root softwood cuttings in early summer. 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

Overview

Height
15 ft. to 30 ft.
Spread
15 ft. to 30 ft.
Growth Habit
Clumps
Growth Pace
Moderate Grower
Light
Full Sun to Part Shade
Moisture
Medium Moisture
Maintenance
Low
Characteristics
Fragrant Flowers,
Showy Flowers,
Showy Fruit
Bloom Time
Spring,
Summer
Flower Color
Red Flower,
White Flower
Uses
Beds and Borders,
Flowering Tree,
Naturalizing,
Specimen Plant/Focal Point,
Waterside
Style
Formal Garden,
Woodland Garden
Seasonal Interest
Spring Interest
Type
Shrubs

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