10/06/2025
Heads up! You may see these green, brown, or black pod-like balls on the ground in your neighborhood at this time of the year. They are nuts from black walnut trees. The picture shows black walnuts in various sizes and stages of maturity and decay. Every part of a black walnut tree (nuts, shells, leaves, and wood) is highly toxic to dogs. The initial symptoms of black walnut poisoning include vomiting, diarrhea, lethargy, and loss of appetite, followed by tremors, seizures, and jaundice. The toxins in black walnut trees can be fatal to dogs if not treated promptly. Do not attempt to use any home remedies if your dog has ingested black walnut. Time is of the essence--get your dog to a vet immediately. (More info in the comments.)
