Korean Mountain Ash

Sorbus alnifolia

Rosaceae · broadleaf · introduced

Quick Facts

Height

40–50 ft

Spread

26 ft

Growth Rate

Fast

Light

Full Sun to Part Shade

Soil

Moist

Water

Moderate

Hardiness

Zone Zones 4a–8b

Bloom Time

May

Origin

central China, Korea and Japan

Diseases (5)

Cytospora canker Cytospora Canker

Erwinia amylovora Fire Blight

Various fungi (Phyllosticta spp., Septoria spp., Cercospo... Leaf Spot

Neonectria ditissima Nectria Canker

Thekopsora minima and Naohidemyces vaccinii Rust

Pests (10)

Cinara occidentalis, Cinara abietis Aphid

Apple-and-thorn skeletonizer

Enarmonia formosana Cherry bark tortrix

Mountain ash sawfly

Caliroa cerasi Pear sawfly (pear slug)

Phytoptus pyri Pearleaf blister mite

Cylindrocopturus furnissi Root weevil

Malacosoma spp. Tent caterpillar

Leaf blister mite