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European Mountain Ash vs Black Walnut

Sorbus aucuparia

Juglans nigra

European Mountain Ash
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European Mountain Ash is an attractive, ornamental tree. This medium-sized tree produces tiny white-yellow flowers in the spring and decorative clusters of small red/orange berries in the summer. Its bitter fruit is often used to make Rowan Jelly, is a traditional garnish for wild game and venison. Ideal for residential lots, European Mountain Ash will attracts birds to your property.

The Black Walnut is a slow growing, large, straight-stemmed and high value timber tree with an open crown. It produces a dense, very hard, edible nut. The root system usually includes a deep tap-root and several wide-spreading and deeply set lateral roots.

Black Walnut has a deeply-furrowed, black bark. Its Leaves are about 1 foot long, composed of 15 - 23 slightly stalked leaflets on a moderately stout stock which provide good dappled shade.

Its roots produce a substance named juglone that is toxic to some other plants. Consider this when choosing where you plant a black walnut, as you will not be able to grow tomato, potato, cabbage, eggplant, blueberry, azalea, rhododendron, lilac, red pine and apple in the surrounding area.

Despite being highly valued for its edible nuts, high value timber, and its shade tree aesthetics, it is rare to see this tree on the prairies. Plant this tree once when it is young as it does not respond well to transplanting.

EUROPEAN MOUNTAIN ASH QUICK FACTS

BLACK WALNUT QUICK FACTS

Zone: 2a
Zone: 3a
Height: 15 m (49 ft)
Height: 14 m (45 ft)
Spread: 5 m (16 ft)
Spread: 9 m (30 ft)
Moisture: normal
Moisture: dry, normal
Light: partial shade, full sun
Light: partial shade, full sun
Fall colour: reddish-orange
Fall colour: yellow
Flowers: small white flowers in clusters
Growth rate: fast
Growth rate: slow
Life span: medium
Life span: long
Maintenance: low
Suckering: none
Suckering: low
Pollution tolerance: medium
Pollution tolerance: high







Ships To Canada: yes
Ships to USA: no
Ships To Canada: yes
Ships to USA: yes