Plant encyclopedia›American mountain ash

American mountain ash

Also known as: roundwood

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

Scientific classification

Species: American mountain ash (Sorbus americana)
Genus: Sorbus
Family: Rosaceae

Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling
Toxicity: Trees
Plant type: 8-12 metres
Height: 4-8 metres
Spread: Deciduous
Foliage: Information to be completed
Habit: Autumn · Spring · Summer
Season of interest: Full sun · Partial shade
Sunlight: Information to be completed
Ideal temperature

American mountain ash pictures

Distribution of American mountain ash

Distribution map

Eastern Northern America

Information to be completed

Culture

Information to be completed

Toxicity

Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling

Quick identification of American mountain ash

Information to be completed

American mountain ash care guide

Moderate watering, deeper during dry periods
Watering: Full sun · Partial shade
Sunlight: Information to be completed
Ideal temperature

Watering

Moderate watering, deeper during dry periods

Fertilizing

Balanced tree feed in spring

Pruning

Little pruning is needed. Remove diseased, damaged, crowded or crossing shoots and unwanted growth. Timing depends on the plant: generally late winter or early spring; plants prone to bleeding and deciduous magnolias need different timing, and deciduous azaleas and lilacs are pruned after flowering.