Sorbus dunnii
Dunnii Mountain Ash
| Family |
| Rosaceae |
| Genus |
| Sorbus |
| Species |
| dunnii |
| Category |
| Woody |
| Type |
| Tree (deciduous), Shrub (deciduous) |
| USDA Hardiness Zone |
| 7 |
| Canadian Hardiness Zone |
| 6b |
| RHS Hardiness Zone |
| H6 |
| Temperature (°C) |
| -15 |
| Temperature (°F) |
| 5 |
| Height |
| 20 m |
| Landscape |
| Wonderful specimen plant. |
| Cultivation |
| Grow in full sun in a fertile, moisture retentive but well-drained soil that is humus rich. May suffer badly in drought, so should be watered in dry conditions. |
| Growth |
| Medium |
| Pests |
| Aphids may be a nuisance, as well as red spider mite and scales. Rust fungus, fireblight and root rots should also be watched for. |
| Flower/Leaf Bud Description |
| Buds are large, with overlapping scales. |
| Flower Description |
| Flowers are white, appearing in terminal corymbs, with 5 petals. |
| Fruit Description |
| Fruis is a pome that is 0.5 - 1 cm in diameter. with 2-5 cells containing 1-2 seeds. |
| Notable Specimens |
| Westonbirt, The National Arboretum, Tetbury, Gloucestershire, England. |
| Propagation |
| Propagate by softwood cuttings in spring and early summer, or by seed (although this may be complicated by dormancy). |