Question 1

True or false: Black walnut wood is highly prized for making fine furniture and gunstocks.

Accepted Answer

True. Its rich dark color, durability, and workability make it a top choice for high-end furniture, cabinetry, and firearm stocks.

Question 2

True or false: Black walnut trees can live for over 250 years in the wild.

Accepted Answer

True. They are long-lived hardwoods, with some specimens reaching 250 years or more under favorable conditions.

Question 3

True or false: Black walnut trees produce a chemical that can kill other plants nearby.

Accepted Answer

True. They release juglone, a toxic compound that inhibits growth of many other plants, a process called allelopathy.

Question 4

True or false: Black walnuts are native only to Europe and were brought to America by colonists.

Accepted Answer

False. They are native to eastern North America; European colonists encountered them here, not the other way around.

Question 5

True or false: The green husk of a black walnut is edible and tastes like a sweet apple.

Accepted Answer

False. The husk is bitter, astringent, and can stain skin; it's not eaten raw, though it's used in dyes and some liqueurs.

Question 6

True or false: Black walnut leaves are toxic to horses if ingested in large quantities.

Accepted Answer

False. Juglone toxicity mainly affects plants; horses can be affected by shavings in bedding, but leaves are not a primary concern.

Question 7

True or false: The black walnut's shell is so hard it can dull a steel drill bit.

Accepted Answer

True. The thick, tough shell is notoriously difficult to crack, often requiring a hammer or specialized nutcracker, and can damage tools.

Question 8

True or false: Eating black walnuts can cause a temporary blue discoloration of the tongue.

Accepted Answer

False. The nutmeat itself is rich and oily, but doesn't stain; only the green husk contains the dark staining juglone.

Black Walnut Trivia Questions