Black Walnut
(Juglans nigra)
Other Information
Physical Characteristics
Type: Tree
Height: 50 - 75 ft
Spread: 50 - 75 ft
Flower Color: Yellow-Green
Flower Time: Spring (Apr - May)
Fruit Type: Walnut
Fruit Color: Lime Green
Autumn Color: Yellow-Green / Insignificant
Sun Conditions: Full Sun / Part Shade
Shade Tolerance: Low
Moisture Preference: Medium
Deer Resistance*: Medium / High
Dog Safe**: No (Toxic)
Conservation Status (MD): SNR - Unranked
Other Names:
*Deer resistance can vary based on many factors
**Always consult with a veterinarian about plants toxic to dogs and other animals
Wildlife Benefits:
Black Walnut is a larval host to 100+ species of caterpillars. The flowers provide pollen and nectar to pollinators. Walnuts are eaten by wildlife and a favorite of squirrels. Trees create cover and nesting sites to various birds and mammals.