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). |