Dolgo Crab Apple vs Black Walnut - TreeTime.ca

Dolgo Crab Apple vs Black Walnut

Malus x Dolgo

Juglans nigra

NOT AVAILABLE THIS SEASON - MIGHT RETURN

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Dolgo Crab Apple
Black Walnut

Dolgo Crab Apple is one of the hardiest species of crab apple.

This fruit tree accent tree combination is commonly used in urban landscapes.

Dolgo Crab Apple produces clusters of white flowers before its deep green foliage emerges. Its small apple-like fruit is great for jams and jellies.

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.

Dolgo Crab Apple Quick Facts

Black Walnut Quick Facts

Zone: 2a
Zone: 3a
Height: 10 m (33 ft)
Height: 14 m (45 ft)
Spread: 10 m (33 ft)
Spread: 9 m (30 ft)
Light: full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: medium
Growth rate: slow
Life span: medium
Life span: long
Suckering: none
Suckering: low
Maintenance: medium


Flowers: white
Fruit: small apples
Nuts: corrugated nut with edible meat
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Other Names: dolgo apple
Other Names: american walnut