Greene Mountain Ash
Sorbus scopulina
Rosaceae · broadleaf deciduous shrub · native
Last updated
Greene mountain ash, also called western mountain ash, is a small to medium deciduous tree native to the Rocky Mountains and Great Basin regions of western North America. Growing 20-30 feet tall, it produces pinnate leaves, white flowers in flat clusters, and orange to red berries.
This species thrives in cool climates with well-drained soil in full sun to light shade and is extremely cold-hardy to zones 2-6. The berries are consumed by birds and wildlife; the plant is useful in native plant landscapes and provides food and nesting habitat.
Quick Facts
Spring Canker Activation
Bloom Infection Window
Spore Release (Fall & Spring Rains)
Aecial Stage (Alternate Host)
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