Black Walnut vs Dahurian Birch - TreeTime.ca

Black Walnut vs Dahurian Birch

Juglans nigra

Betula davurica

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Black Walnut
Dahurian Birch

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.

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

Dahurian Birch is a rare and interesting ornamental with curling bark. This tree is the first to sprout on bare land and is tolerant of dry, gravelly, and infertile soils. Dahurian Birch can grow in industrial areas or exposed land as long as it has full sunlight.

This tree is ideal for landscaping, ornamental, and ecosystem services.

This tree is not well known, but is a favorite of nursery owners across the country.

Note: This species is currently unavailable. Grow your own using Dahurian Birch seeds at SeedTime.ca.

Black Walnut Quick Facts

Dahurian Birch Quick Facts

Zone: 3a
Zone: 4a
Height: 14 m (45 ft)
Height: 14 m (45 ft)
Spread: 9 m (30 ft)
Spread: 7 m (22 ft)
Moisture: dry, normal
Moisture: normal, wet
Light: partial shade, full sun
Light: partial shade, full sun
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no
Bark: showy grey brown bark that exfoliates as it ages
Nuts: corrugated nut with edible meat
Growth rate: slow
Growth rate: fast
Life span: long
Life span: medium
Maintenance: medium
Suckering: low
Suckering: low




Other Names: american walnut
Other Names: asian black birch