Black Walnut vs Amur Maackia - TreeTime.ca

Black Walnut vs Amur Maackia

Juglans nigra

Maackia amurensis

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Black Walnut
Amur Maackia

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.

Amur Maackia is a robust and pretty tree often used for urban decoration and landscaping. This tree has coppery peeling bark that can sometimes resemble lace. Its upright clusters of small white flowers usually bloom in midsummer. Amur Maackia's Small size makes it a great choice for small yards or limited space.

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

Black Walnut Quick Facts

Amur Maackia Quick Facts

Zone: 3a
Zone: 4a
Height: 14 m (45 ft)
Height: 8 m (25 ft)
Spread: 9 m (30 ft)
Spread: 8 m (25 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
Fall colour: brown
Flowers: upright clusters of small white flowers
Bark: shiny copper colour shedding in curls
Nuts: corrugated nut with edible meat
Growth rate: slow
Growth rate: slow
Life span: long
Life span: long
Suckering: low
Suckering: low




Other Names: american walnut
Other Names: maackia