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Juglans nigra

Juglans nigra - Black Walnut - Photo courtesy of J. Frank Schmidt & Son Co.

More About Juglans nigra

  • Tall, oval to rounded, growth habit
  • Large, pinnate, compound leaves emerge in late spring and drop early fall
  • Foliage colour is dark green in the summer, becoming yellow in early fall
  • Male and female flowers appear before the leaves
  • Nut are encased in yellow-green husks, maturing in autumn
  • Bloom Time: Spring

Interesting Notes:

Native to Ontario and parts of North America.

Native Americans used the nuts for food and boiled the tree sap for syrup. They also reportedly threw the husks into ponds to poison fish, making them easier to catch.

Zone:

3

Height:

18-25 m

Spread:

16-18 m

Colour:

Yellow
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Black Walnut Growing and Maintenance Tips

A great tree for larger landscapes and natural areas. Placement should be considered as the litter from the nuts can be very messy. Juglans produce the chemical juglone, and many plants are highly sensitive to this chemical. Look for plants with a tolerance to the toxicity near or under juglans. A great tree for attracting squirrels.


Juglans nigra Characteristics

Full Sun
Full Sun
Fast
Fast
Edible
Edible
Salt Tolerant
Salt Tolerant
Drought Tolerant
Drought Tolerant
Native to Ontario
Native to Ontario

Soil Moisture

Well-drained
Moist to Wet Soils
Moist to Average

Attributes

Juglan Tolerant
Deciduous
Fall Color

Habit

Oval
Rounded
Tree form

Foliage Color

Green (dark)

Landscape uses

Naturalizing
Specimen

 Suitable Substitutions for Juglans nigra

Get more info on Gymnocladus dioicus Espresso™ ('Espresso-JFS')

Gymnocladus dioicus Espresso™ ('Espresso-JFS')

Espresso™ Kentucky Coffee Tree

Get more info on Gymnocladus dioicus

Gymnocladus dioicus

Kentucky Coffee Tree