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Magnolia sieboldii (Oyama Magnolia)

Oyama Magnolia, Korean Mountain Magnolia, Siebold's Magnolia

Magnolia sieboldii, Oyama Magnolia, Korean Mountain Magnolia, Siebold's Magnolia, White magnolia, White flowers, Fragrant Flowers
Magnolia sieboldii, Oyama Magnolia, Korean Mountain Magnolia, Siebold's Magnolia, White magnolia, White flowers, Fragrant Flowers

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), turns 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. It 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 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 bugs, snails, coral spots, gray mold, and 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.

Magnolia Tree: How to Grow and Care with Success


Want to learn how to grow and care for a magnolia tree like a pro? Follow these simple steps and enjoy the beauty of this striking tree

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 Magnoliaceae
Genus Magnolia
Common names Magnolia
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early, Mid)
Fall
Height 10' - 15'
(3m - 4.6m)
Spread 10' - 15'
(3m - 4.6m)
Maintenance Average
Water Needs 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 Informal and Cottage, City and Courtyard
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Alternative Plants to Consider

Magnolia tripetala (Umbrella Magnolia)
Magnolia grandiflora ‘Little Gem’ (Southern Magnolia)
Magnolia grandiflora ‘Exmouth’ (Southern Magnolia)
Magnolia grandiflora (Southern Magnolia)
Magnolia grandiflora ‘Kay Parris’ (Southern Magnolia)
Magnolia macrophylla (Bigleaf Magnolia)

Recommended Companion Plants

Enkianthus campanulatus (Redvein Enkianthus)
Mahonia nervosa (Cascade Mahonia)
Carex morrowii ‘Variegata’ (Japanese Sedge)
Dicentra spectabilis ‘Gold Heart’ (Bleeding Heart)
Hakonechloa macra ‘Aureola’ (Hakone Grass)
Hosta ‘June’ (Plantain Lily)
Polygonatum odoratum ‘Variegatum’ (Solomon’s Seal)

Find In One of Our Guides or Gardens

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Star Magnolia (Magnolia stellata)
Loebner Magnolia (Magnolia x loebneri)
Yulan Magnolia (Magnolia denudata)
Saucer Magnolia (Magnolia x soulangeana)
Best Companion Plants for Camellias
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Magnolia Tree: How to Grow and Care with Success
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.
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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 Magnoliaceae
Genus Magnolia
Common names Magnolia
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early, Mid)
Fall
Height 10' - 15'
(3m - 4.6m)
Spread 10' - 15'
(3m - 4.6m)
Maintenance Average
Water Needs 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 Informal and Cottage, City and Courtyard
How Many Plants
Do I Need?
Guides with
Magnolia
Not sure which Magnolia to pick?
Compare Now

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