About
Sorbus matsumurana, the Japanese mountain ash, is a small, deciduous tree or shrub rarely exceeding 4 m in cultivation, producing bluish-green, pinnate leaves of 4�6 pairs of leaflets turning purple, red, orange and yellow in autumn, small clusters of white spring flowers and oval to rounded, red fruits in autumn. A rewarding and ornamental rowan for a sunny, well-drained garden.
About the genus
Sorbus, the mountain ashes, rowans and whitebeams, are deciduous trees or shrubs producing simple or pinnate leaves and clusters of small, white or pink flowers followed by white, yellow, pink, red or brown berries; many provide excellent autumn colour. Rewarding and ornamental trees and shrubs for a sunny, well-drained garden.
Growing conditions
SunlightFull sun, Partial shade
Soil typeClay, Loam, Sand
Soil pHAcid, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectEast-facing, North-facing, South-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH5
Plant details
Plant typeShrubs, Trees
HabitBushy
FoliageDeciduous
Height2.5-4 metres
Spread1.5-2.5 metres
Time to full height20-50 years
Suggested usesCottage and informal garden, Wildlife gardens
ToxicityFruit are ornamental, not to be eaten. Wear gloves and other protective equipment when handling. Pets: Fruit are ornamental, not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Care notes
CultivationGrow in moderately fertile, humus-rich, moist but well-drained soil in sun or light dappled shade; will grow in a wide range of soils but prefers acidic or neutral soil. See tree cultivation for further advice
PruningPruning group 1
PropagationPropagate by seed, softwood cuttings or grafting
Pest resistanceMay be susceptible to aphids, scale insects, pear blister mite, red spider mite and sawfly larvae
Disease resistanceMay be susceptible to fireblight, apple canker, silver leaf and honey fungus