Alphabetical Plant Listing

Magnolia sieboldii (Oyama Magnolia)

Oyama Magnolia, Korean Mountain Magnolia, Siebold's Magnolia


A classic beauty, Magnolia sieboldii (Oyama Magnolia) is a vase-shaped, deciduous shrub or small tree boasting splendid flowers in late spring to early summer and sporadically throughout the rest of the summer. Emerging from egg-shaped buds, nodding or pendent, cup-shaped fragrant white flowers, 4 in. across (10 cm), with prominent crimson stamens can be admired. They are followed by showy, pink oval fruits, 3 in. long (7 cm), which split open in the fall to reveal orange to red seeds. The foliage of broad elliptic green leaves, 3-6 in. long (7-15 cm), warms up to golden yellow in fall. Oyama Magnolia grows as an understory tree or large shrub in the wild. Small-statured, with no serious disease or insect problems, this Magnolia is a good choice for small gardens where it will make a charming statement growing as a central feature..

  • Grows up to 10-15 ft. tall and wide (300-450 cm).
  • Performs best in part shade in moisture-retentive, organically rich, well-drained neutral to acid soil. May be grown in full sun in cool summer areas as long as the soil is constantly moist. Intolerant of poor soils. Plant in an area that is protected from strong winds to help the flowers last their longest.
  • A beautiful addition to city gardens, cottage gardens, woodland gardens, patio containers and small gardens.
  • No serious pest or disease issues. Keep an eye out for capsid bug, snails, coral spot, gray mould, honey fungus.
  • Pruning is best done after flowering when in full leaf.
  • Propagate by seed, semi-hardwood and softwood cuttings.
  • Native to Japan, southeastern China and Korea.

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Requirements

Hardiness 6 – 9
Heat Zones 6 – 9
Climate Zones 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Shrubs, Trees
Plant Family Magnolias
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early,Mid)
Fall
Height 10' – 15' (3m – 4.5m)
Spread 10' – 15' (3m – 4.5m)
Water Needs Average
Maintenance Average
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Cut Flowers, Fragrant, Showy, Fruit & Berries
Garden Uses Patio and Containers, Small Gardens
Garden Styles City and Courtyard, Informal and Cottage

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Terrima, High Mountain, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 6 – 9
Heat Zones 6 – 9
Climate Zones 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Shrubs, Trees
Plant Family Magnolias
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early,Mid)
Fall
Height 10' – 15' (3m – 4.5m)
Spread 10' – 15' (3m – 4.5m)
Water Needs Average
Maintenance Average
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Cut Flowers, Fragrant, Showy, Fruit & Berries
Garden Uses Patio and Containers, Small Gardens
Garden Styles City and Courtyard, Informal and Cottage

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