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Horse Chestnut vs Black Walnut

Aesculus hippocastanum

Juglans nigra

Horse Chestnut
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Horse Chestnut is a medium sized deciduous tree that is native to Greece but has been grown in North America for hundreds of years. Produces large nuts and both nuts and foliage have many medicinal uses.

The Black Walnut is a slow growing, large, straight-stemmed and high value timber tree with an open crown. It produces a dense, very hard, edible nut. The root system usually includes a deep tap-root and several wide-spreading and deeply set lateral roots.

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.

Its 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.

Despite being highly valued for its edible nuts, high value timber, and its shade tree aesthetics, it is rare to see this tree on the prairies. Plant this tree once when it is young as it does not respond well to transplanting.

HORSE CHESTNUT QUICK FACTS

BLACK WALNUT QUICK FACTS

Zone: 3a
Zone: 3a
Height: 12 m (39 ft)
Height: 14 m (45 ft)
Spread: 4 m (12 ft)
Spread: 9 m (30 ft)
Moisture: normal
Moisture: dry, normal
Light: partial shade, full sun
Light: partial shade, full sun
Fall colour: yellow to orange
Fall colour: yellow
Nuts: large nuts within spiky capsules. Slightly poisonous to eat
Growth rate: medium
Growth rate: slow
Life span: medium
Life span: long
Maintenance: medium
Suckering: none
Suckering: low
Pollution tolerance: high
Pollution tolerance: high



Toxicity: raw Horse Chestnut seed, leaf, bark and flower is toxic if ingested due to the presence of esculin.




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