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What is Black walnut? — PlantSage

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What is Black walnut

— Short, snippet-friendly answers to the most-asked questions about Black walnut (Juglans nigra). For the full profile with citations, open the main page.

What is Black walnut?

The Black walnut is a perennial tree native to a broad range of eastern North America, from Alabama to Connecticut. Black walnut (Latin: Juglans nigra) is a medicinal plant catalogued in PlantSage.

What is Black walnut used for?

Black walnut is most often used to support digestion. Each claim is rated by evidence strength - see the full profile for citations.

Is Black walnut safe?

Black walnut is generally considered safe when used at traditional doses. Always consult a clinician before using any herbal preparation — especially during pregnancy, breastfeeding, while on medication, or for children.

Where does Black walnut grow?

Black walnut is a member native to ALA, ARK, CNT, DEL, WDC, and FLA. This tree prefers well-lit conditions, with a light requirement of 7 out of 10.

Can I grow Black walnut at home?

Black walnut grows best in USDA zone 4-9, 7/10 light, moist water, and perennial life cycle. Detailed sowing, propagation, and care notes are on the full profile.

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