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Black Walnut vs Russian Mountain Ash

Juglans nigra

Sorbus aucuparia Rossica

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Black Walnut
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The Black Walnut is a slow growing, large, straight-stemmed tree with an open crown. It produces dense, very hard, edible nuts.

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.

Despite being highly valued for its edible nuts and its shade tree aesthetics, it is rare to see this tree on the prairies.

Note: Black Walnut's 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.

Note: plant this tree once. It will not respond well to transplanting.

Note: Although self-pollinating, planting two trees significantly improves nut production.

The Russian Mountain Ash is a stunning ornamental tree with the perfect pop of colour. It bears white flowers in the spring and gorgeous orange berries in the fall. Birds enjoy the berries that persist into the winter. It grows tall and can thrive in an urban setting making this an attractive ornamental tree for your landscaping project.

BLACK WALNUT QUICK FACTS

RUSSIAN MOUNTAIN ASH QUICK FACTS

Lowest Price: $8.99 - SAVE UP TO 24%
Zone: 3a
Zone: 2a
Height: 14 m (45 ft)
Height: 9 m (30 ft)
Spread: 9 m (30 ft)
Spread: 5 m (18 ft)
Moisture: dry, normal
Moisture: any
Light: partial shade, full sun
Light: full sun
Berries: orange-red
Flowers: showy white
Bark: shiny grey
Growth rate: slow
Growth rate: medium
Life span: long
Life span: medium
Maintenance: high
Suckering: low
Suckering: none
Pollution tolerance: high
Pollution tolerance: high





Other Names: american walnut
Other Names: russian rowan


Ships To Canada: yes
Ships to USA: yes
Ships To Canada: yes
Ships to USA: yes