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Oyama Magnolia

Magnolia sieboldii

Also called Korean Mountain Magnolia

Oyama Magnolia
Photo: Wendy Cutler from Vancouver, Canada, CC BY 2.0

Oyama magnolia is a deciduous shrub or small tree of the Magnolia genus, native to China, Japan and Korea, grown for its large, fragrant white summer flowers. It is one of the hardiest magnolias, so it suits cool temperate gardens.

Family
Magnoliaceae (Magnolia family)
Grows as
Tree
Light
Part shade, Full sun
Water
Keep soil evenly moist, especially in the first years, and avoid waterlogging.
Soil
Moist, fertile, well-drained, slightly acidic to neutral soil enriched with organic matter.
Temperature
Hardy to very cold winters; protect young plants from late frosts and hot, dry winds.
How easy
Easy
Native range
C. China to Japan
Climate
temperate

About

Magnolia sieboldii, or Siebold's magnolia, also known as Korean mountain magnolia and Oyama magnolia, is a species of Magnolia native to east Asia in China, Japan, and Korea. It is named after the German doctor Philipp Franz von Siebold (1796–1866).

How to grow it

Magnolia sieboldii is grown as an ornamental tree in gardens. It is one of the hardiest magnolias, successful in cultivation as far north as Arboretum Mustila in Finland. The cultivar 'Colossus' has gained the Royal Horticultural Society's Award of Garden Merit.

Called mongnan or mokran (목란/木蘭), Siebold's magnolia is the national flower of North Korea.

Other Magnolia plants

Ashe's Magnolia · Magnolia boliviana · Campbell's Magnolia · Magnolia cararensis · Champak · Prosperous Music Smiling Tree · Magnolia coco · Compressed Michelia · Dawson's magnolia · Cloudforest magnolia · Chinese Evergreen Magnolia · Lilytree

Text excerpted from the Wikipedia article Magnolia sieboldii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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