Juglans nigra L.

Black Walnut

At Wisely

At Wisely


Family: Juglandaceae

Genus: Juglans

Category: Tree - Deciduous

Zones: 4 to 9

Size: To 70' tall and wide

Growth Rate: Slow

Exposure: Sun


Alternate, compound leaves to 24" with 15 to 23 leaflets. Green fruit to 2" diameter, edible nuts. Spreading open form. Difficult to transplant because of its tap root. Prefers moist well-drained soil.


Published in Sp. Pl. 2: 997 in 1753. Linnaeus refers to Catesby's Natural History Volume I Plate 67.

Native to eastern and central US and east Canada.

Introduced to cultivation in 1686.

RHS Award of Garden Merit in 2002.

Sources of Information

© 2010-12 Lisa J. Miner