SelecTree: Tree Detail
KOREAN MOUNTAIN ASH
Photo Locations: Hoyt Arboretum - Portland, OR, The Morton Arboretum - Lisle, IL, Red Butte Garden - Salt Lake City, UT, The National Arboretum - Washington, DC and Arnold Arboretum - Boston, MA
Messy fruit attracts birds.
Native to Japan, China, and Korea.
Erect or Spreading and requires ample growing space.
Has Deciduous foliage.
Height: 40 - 50 feet.
Width: 20 - 30 feet.
Growth Rate: 24 Inches per Year.
Longevity 50 to 150 years.
Leaves Elliptic to Ovate, Green, Golden or Yellow or Orange, Deciduous.
Flowers Showy. White. Flowers in Spring. Has perfect flowers (male and female parts in each flower).
Prolific, Red or Yellow Pome, Small (0.25 - 0.50 inches), fruiting in Winter or Summer.
Bark Dark Brown or Dark Gray, Smooth.
Shading Capacity Rated as Moderately Dense in Leaf.
Shading Capacity Rated as Moderate out of Leaf.
Litter Issue is Wet Fruit.
Tree Site Conditions & Constraints
Sunset Zones 1 - 10 and 14 - 17.
USDA Hardiness Zones 5 - 8.
Exposure Full Sun to Partial Shade.
Moist to Dry Soil.
Clay, Loam or Sand Texture.
Highly Acidic to Slightly Alkaline Soil pH.
Seaside Tolerance is Medium in Mild Zone.
Pests & Disease Information
Resistant to Verticillium. Susceptible to Beetle Borers, Canker, Fire Blight and Rust.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium.
Root Damage Potential Rated as Low.
None Known Health Hazard.
Desirable Wildlife Plant.
Attracts Birds and Bees.
Cite this tree:
SelecTree. "Sorbus alnifolia Tree Record." 1995-2021. Apr 12, 2021.
< https://selectree.calpoly.edu/tree-detail/sorbus-alnifolia >