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Toxicity flag: low

Keep this plant away from pets and children who chew on landscape plants.

Eggs found on Juglans nigra in Pennsylvania, January

Photo: User:SB_Johnny (CC BY-SA 3.0), via Wikimedia Commons

Fruit & ediblehigh water

Black Walnut

Juglans nigra

Black Walnut (Juglans nigra) is a landscape plant valued for its form and structure as much as its bloom. It reaches roughly 100 ft at maturity and blooms in late spring. Match it to full sun to part shade and keep the root zone consistently moist. One caveat worth knowing before you plant: parts of this species carry a toxicity flag (low), so keep it away from pets and kids who chew on landscape plants. Given a spot that matches its light and water needs, it is a dependable, low-drama addition to the yard.

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Hardiness range

A hardiness zone is not on file for this plant yet, and a ZIP-level fit check is not available for it.

How it does in your yard

HabitNot recorded
Hardiness zoneNot recorded
Mature heightAbout 100 ft
Waterhigh
Bloom periodLate Spring
Native to the USNot recorded
Toxicitylow

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Questions

Is Black Walnut native to the United States?

USDA PLANTS data does not record Black Walnut as native to the United States.

What USDA hardiness zone does Black Walnut need?

A minimum hardiness zone is not on file for Black Walnut yet.