Oyama magnolia (Magnolia sieboldii)

USDA Hardiness Zones

USDA hardiness zones
Oyama magnolia
Oyama magnolia Oyama magnolia
Oyama magnolia (Magnolia sieboldii)
Zone Zone  more information
Hardy to zone 5b
Mature Height Mature Height
10 to 15 feet
Mature Spread Mature Spread
10 to 15 feet
Growth Rate Growth Rate
Slower
Sun Sun
Partial Shade
Moisture Moisture
Moist soil, well drained
Fall Color Fall Color
Dull
Attracts Wildlife Attracts Wildlife
No
Flower Flower
Ornamental
Fruit Fruit
Insignificant
Evergreen Evergreen
No
Native to WI Native to WI
No
Additional Information Additional Information
upright to rounded, open form; 10-15’ tall and wide; blooms after the leaves in late June and intermittent in August; long lasting, fragrant, downward pointing flowers with thick tepals (petals) with dark pink to rose colored centers; prefers partial shade; loamy, organic soil, neutral to slightly acid, moist, well-drained soil; intolerant to dry, compacted, heavy clay, poorly drained soils, drought, and road salt; plant in spring only; native to Japan and Korea; hardy to zone 5b

UW Extension
For more information, see the UW Extension Urban Horticulture Team Web site: www.uwex.edu/ces/wihort
Primary Author: Dr. Laura Jull
Photos by: Dr. Laura Jull and Dr. Ed Hasselkus

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