Black Walnut

Will not produce flowers/seed unless it gets adequate winter cold, hence not recommended for use south of its native range.

Salt spray tolerance was based on comments about tolerance to winter road salt in the northeastern US.



Specimen tree. Woodlot tree.

Not salt tolerant of inundation by salty or brackish water.



Moderate. Tolerant of salty wind and may get some salt spray. Exposure to salt spray would be uncommon (major storms).

Nuts can be abundant on the ground in fall.

Husks can stain.

Tree roots, nuts, and leaves exude an effective herbicide (juglone) to reduce competition. Use with care in the landscape, it can poison birches and many herbaceous plants.

Seeds eaten by squirrels and other odents.  May be a significant food the fox squirrels (https://www.fs.fed.us/database/feis/plants/tree/jugnig/all.html)

Dry mesic woods. Second bottoms. Prefers rich soils.

• Interesting foliage