Identifying a Black Walnut Seedling in Southern Maryland

A fast-growing plant on a Southern Maryland farm with long pinnate leaves was suspected to be milkweed.

ID: Black Walnut (Juglans nigra)

If near gardens, **remove now**—roots spread juglone. Wear gloves (staining).

Identifying Unknown Plants: Leaf Spots on Young Black Walnut: Harmless Fungi or Galls; Jasmine and Strawberry Problems in France: Watering, Mites, and Fruit Deformity; Planting After Black Walnut Removal: Is the Soil Safe After 8 Years?; Black Walnut Sawdust Dog Toxicity: Mold Risk, Not Juglone; Black Rot on Grapes/Apples: No Threat to Walnut Trees; Black Leaves on Houseplants After a Day Outdoors: Sun and Heat Damage; Plants That Tolerate Black Walnut Juglone Toxicity; Weed Control in Central New York Lawn: Bluegrass and Broadleaf; Growing Grass Under Black Walnut Trees: Tolerant Species by Region; Black Walnut Allelopathy: Juglone-Sensitive and Tolerant Plants for Your Landscape

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