Bur Oak vs Black Walnut - TreeTime.ca

Bur Oak vs Black Walnut

Quercus macrocarpa

Juglans nigra

NOT AVAILABLE THIS SEASON

(new stock expected: fall of 2026)

Bur Oak
Black Walnut

Bur Oak has a wide distribution but is one of the only oaks that will grow well on the prairies. Bur Oak produces deeply lobed, dark green leaves that turn golden yellow to brown in the fall.

Its acorns are round and half enclosed by a mossy fringed cup.

Although slower growing, this long lived tree eventually becomes a popular large ornamental tree for driveways, parks, and the front of industrial buildings. Popular as a memorial or dedication tree.

Note: Most Oak species can be considered toxic for many animals.

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.

Bur Oak Quick Facts

Black Walnut Quick Facts

Lowest Price: $9.99 - SAVE UP TO 50%
Zone: 2b
Zone: 3a
Height: 20 m (66 ft)
Height: 14 m (45 ft)
Spread: 8 m (28 ft)
Spread: 9 m (30 ft)
Moisture: dry, normal
Moisture: dry, normal
Light: full sun
Light: partial shade, full sun
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: no
Fall colour: yellow to golden brown
Nuts: small acorns
Nuts: corrugated nut with edible meat
Growth rate: slow
Growth rate: slow
Life span: long
Life span: long
Suckering: low
Suckering: low




Other Names: blue oak, burr oak, mossycup oak, scrub oak
Other Names: american walnut