Sorbus americana
American mountain ash
Flower Color
Description
A fairly slow-growing tree with a rounded crown and light green leaves comprising up to 15 leaflets, turning red or yellow in autumn. In late spring and early summer produces dense, flattened clusters of small white flowers, followed by orange-red berries
Mature Height
12m
Mature Spread
8m
Plant Characteristics
Foliage
Deciduous
Growth Habit
Spreading
Growth Speed
Moderate · 0.3 m/yr
Soil Texture
ClayLoamSand
Soil pH
AcidNeutral
Soil Moisture
Moist but well-drainedWell-drained
Hardiness (RHS)
H8
Hardiness (USDA)
Zones 2-9
Flowering Season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Key Features
City and courtyard gardensCottage and informal gardenWildlife gardensLow Maintenance