Eastern Black Walnut
Eastern Black Walnut
Juglans nigra
Plantae
COMMON

Stats

Lifespan
Up to 200 yrs
Size
Large
Diet
Photosynthetic
Biome
Temperate deciduous forest
Range
Eastern North America
Movement
Sessile
Breeding
Seeds
Defense
Toxins
Status
Common

About

A towering eastern North American hardwood whose roots and fallen husks leach juglone into the soil — a natural toxin that kills tomatoes, apples, and most garden plants within a 50-foot radius. Its deeply wrinkled nuts are prized for baking, but cracking the iron-hard shell typically requires a vice or a hammer.

Life cycle

  1. 1.
    seed
    A dormant seed waits for water and warmth before germinating.
  2. 2.
    sprout
    A first shoot emerges with cotyledon leaves and a tap root reaching down.
  3. 3.
    sapling
    A young plant grows true leaves and a stem or trunk, putting on height each season.
  4. 4.
    mature
    Fully grown, flowering or fruiting at adult size.

Learn more

Taxonomy

Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Fagales
Family
Juglandaceae
Genus
Juglans
Species
Juglans nigra