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Woody > Sorbus > Sorbus dunnii > Sorbus dunnii

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
Photographs
Description and Growing Information
Flowering Period
AprilMay
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).
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