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Black WalnutJuglans nigra

  • Black Walnut - Juglans nigra
  • Black Walnut - Juglans nigra
  • Black Walnut Juglans nigra
Practicality and aesthetics combine in the black walnut to make this species one of the most treasured trees in American history. The valuable dark brown wood is strong with a handsome grain that polishes easily and gleams forever. And the rich, flavorful nuts are enjoyed fresh and retain their flavor and texture during cooking.

Whether you love it more for the stunning wood or the delicious nuts, it is an upstanding tree.

Hardiness Zones

The potted black walnut can be expected to grow in Hardiness Zones 4–9. View Map

Tree Type

This is a nut-producing tree, yielding nuts for human and wildlife consumption.

Mature Size

The black walnut grows to a height of 50–75' and a spread of 50–75' at maturity.

Growth Speed Medium Growth Rate

This tree grows at a medium rate, with height increases of 13–24" per year.

Sun Preference

Full sun is the ideal condition for this tree, meaning it should get at least six hours of direct, unfiltered sunlight each day.

Soil Preference

The black walnut grows in in acidic, alkaline, loamy, moist, rich, sandy, well-drained, wet and clay soils.

Wildlife Value

The nuts are eaten by woodpeckers, foxes and squirrels.


This native tree has been called our best friend in times of war and peace. Native Americans and early settlers used it for food, dyes, ink, medicine, fence posts, gun stocks and furniture.