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Black Walnut vs Big Leaf Maple

Juglans nigra

Acer macrophyllum

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Black Walnut
Big Leaf Maple

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.

Big Leaf Maple has a broad, rounded crown and the largest leaves of all the maples. The pleasant shape and large leaves make this maple a striking and attractive tree. In autumn, the leaves turn vibrant shades of gold and orange.

Big Leaf Maple is a soil building species, meaning that it improves the soil conditions where it grows.

BLACK WALNUT QUICK FACTS

BIG LEAF MAPLE QUICK FACTS

Zone: 3a
Zone: 5a
Height: 14 m (45 ft)
Height: 15 m (50 ft)
Spread: 9 m (30 ft)
Spread: 15 m (50 ft)
Moisture: dry, normal
Moisture: normal, wet
Light: partial shade, full sun
Light: partial shade, full sun
Fall colour: yellow to gold
Growth rate: slow
Growth rate: fast
Life span: long
Life span: medium
Suckering: low
Suckering: medium
Pollution tolerance: high
Pollution tolerance: low





Other Names: american walnut
Other Names: big-leaf maple, bigleaf maple, oregon maple


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