| Description | Korean Mountain Ash (Sorbus altinifolia) is a small to medium tree with white flowers in mid May followed by colorful persistent fruit in the fall. More resistant to the diseases and other problems that plaque the Mountain Ash. |
|---|---|
| Pronunciation | (SOR-bus)(al-nih-FOLE-ee-uh) |
| Plant Type | Trees Deciduous, Site author's observations |
| Hardiness Zone | 4-7 |
| Sunlight | full, mostly sunny |
| Moisture | average to moist |
| Soil & Site | best in well drained slightly acidic |
| Flowers | white, 3/4" in flat corymbs, blooming in mid to late May. |
| Fruit | pinkish orange to scarlet occurring in clusters in the fall, very showy. |
| Leaves | simple, alternate, ovate, toothed (serrated), dark green in the summer turning to orange-brown in the fall. |
| Stems | Bark is gray resembling a Beech with prominent small gray lenticels. |
| Dimensions | Starts as a triangular tree than matures into oval or round. Reaches 30-50 feet tall by 1/2 to 3/4 spread. |
| Propagation | cold stratified seeds |
| Native Site | central China, Korea and Japan |
| Cultivar Origin | Introduced in 1892 by the Arnold Arboretum. |
| Misc Facts | Grows best in less stressful sites. |
| Author's Notes | I have watch a few of these grow at the Boerner Botanical Gardens (USA) for many years. They seem to be doing well and are small to medium sized trees. |
| Notes & Reference | #01-Manual of Woody Landscape Plants (Michael Dirr), #245-Trees for American Gardens (Donald Wyman) |
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