Black Walnut

Slow-growing if not in its preferred moist, fertile, sunny site. Wide-spreading branches form an upright, umbrella-like crown in the woods or a round-topped crown in the open. The deep tap-root makes transplanting difficult. Nuts may become a nuisance as they litter and stain. Foliage is often attacked by caterpillars, and the species is susceptible to anthracnose which defoliates trees for the season. Certain plants such as azaleas, rhododendrons, blueberries, peonies and solanaceous crops (tomatoes, peppers, potatoes), will not grow under Black Walnut trees because of chemicals that the tree puts in the soil. Yellow fall foliage. Attracts butterflies, bees, and birds. Food source for caterpillars, squirrels and other wildlife.