A native of the Niagara Peninsula in southern Ontario, these trees also will thrive in North Central Alberta. Large specimens have been growing in the Athabasca area since they were planted as saplings by homesteaders emigrating from Ontario in 1914.

In the open the Black Walnut forks down low into massive limbs with a few ascending branches; the crown covers most of the tree but is open as the tree is intolerant of shade. The root system usually includes one or more tap roots with several other, wide spreading and deeply set lateral roots that make it extremely wind firm.

The Black Walnut is not only valuable as shade and ornamental tree; as a source of edible nuts, but its wood is extremely valuable will single tree worth upwards of $10,000 dollars.