Western Mountain Ash vs Butternut (White Walnut) - TreeTime.ca

Western Mountain Ash vs Butternut (White Walnut)

Sorbus scopulina

Juglans cinerea

NOT AVAILABLE THIS SEASON - MIGHT RETURN

COMING SOON

(new stock expected: fall of 2025)

Western Mountain Ash
Butternut (White Walnut)

Western Mountain Ash is a popular ornamental tree native to the western part of North America. Its attractive, white clusters of flowers bloom in early summer, making way for red, yellow or orange fruit in the fall. If the fruit doesn't catch your eye, Western Mountain Ash's autumn colours will capture your–and the birds's–attention.

Butternut is one of the few walnut varieties native to Canada. The nuts are sought after for their mild, sweet, and oily taste. Ensure this tree is planted in full sun and well-drained soil for best results.

Butternut is self-fertile but it has better yields when planted near other butternuts. It can survive in zone 2, but reliably produces nuts in zone 3.

A top CO2 absorbing species. Experts think this tree may help climate change more than others.

Western Mountain Ash Quick Facts

Butternut (White Walnut) Quick Facts

Zone: 2a
Zone: 2b
Height: 9 m (30 ft)
Height: 25 m (82 ft)
Spread: 6 m (20 ft)
Spread: 8 m (27 ft)
Light: full sun
Light: full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: medium
Growth rate: fast
Life span: medium
Life span: medium
Suckering: none
Suckering: none
Maintenance: medium


Flowers: white
Berries: bunches of orange-red berries appear in late summer
Nuts: brown shell, edible
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Other Names: cascade mountain ash, greene mountain ash
Other Names: demon walnut, oilnut, white walnut