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Is Big Shellbark Hickory toxic to cats?

NO (NON-TOXIC)
Good news, Big Shellbark Hickory is a cat safe plant! While this plant is non-toxic, it may still irritate your cat's tummy and potentially cause vomitting or diarrhea if ingested.
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Additional Names:Shellbark Hickory
Scientific Name:Carya laciniosa
Family:Juglandaceae
Detailed Write-up
Author:
Alec
Last Updated:
7/13/25

Is Big Shellbark Hickory Toxic to Cats?

Introduction

Cats are inquisitive creatures, and they like to explore their environment. As a result, they sometimes get into things they shouldn't, such as plants that are toxic to them. One such plant that has come under scrutiny is the Big Shellbark Hickory. This tree is native to North America and is known for its edible nuts. But is it safe for cats? In this article, we will explore the potential toxicity of the Big Shellbark Hickory to cats.

The Big Shellbark Hickory Tree

The Big Shellbark Hickory is a tall deciduous tree that can reach a height of up to 100 feet. It is native to North America and is found in the eastern United States and parts of Canada. The tree produces edible nuts that are encased in a hard shell. The nuts are harvested in the fall and are a popular food source for wildlife and humans alike.

Toxicity to Cats

While the nuts of the Big Shellbark Hickory are safe for human consumption, there is limited information on their toxicity to cats. However, it is important to note that many plants and trees that are safe for humans can be toxic to cats. The leaves and bark of the Big Shellbark Hickory tree contain compounds known as juglones, which can cause toxicity to some animals. Juglones are found in other trees as well, such as the Black Walnut, and have been known to cause laminitis in horses. However, there is little information on whether juglones are toxic to cats.

What to Look For

If your cat has ingested any part of the Big Shellbark Hickory tree, you should watch for signs of toxicity. Symptoms of toxicity can include vomiting, diarrhea, lethargy, tremors, seizures, and difficulty breathing. If you notice any of these symptoms, you should contact your veterinarian immediately. It is also important to note that if your cat has ingested any plant that you suspect may be toxic, you should seek veterinary attention. Even if your cat is not showing any symptoms, some toxic compounds can take several hours or even days to cause symptoms.

Preventative Measures

To prevent your cat from ingesting any part of the Big Shellbark Hickory tree, you should try to keep your cat away from the tree. This may mean keeping your cat indoors or keeping it on a leash when outside. You should also be aware of any other plants in your yard that may be toxic to your cat and take appropriate precautions. If you have a Big Shellbark Hickory tree in your yard and are concerned about the safety of your cat, you may want to consider removing the tree or fencing it off.

Conclusion

While there is limited information on the toxicity of the Big Shellbark Hickory tree to cats, it is important to be aware of the potential risks. If you have a Big Shellbark Hickory tree in your yard or your cat has ingested any part of the tree, you should monitor your cat for signs of toxicity and contact your veterinarian if necessary. By taking preventative measures, you can help ensure the safety of your feline companion.

Sources

  • “Big Shellbark Hickory.” USDA Forest Service, www.fs.fed.us/database/feis/plants/tree/caryoc/praefru/all.html.
  • “Juglone Toxicity.” PennState Extension, extension.psu.edu/juglone-toxicity.
  • “Plant Poisoning in Cats.” Pet Poison Helpline, 22 Feb. 2018, www.petpoisonhelpline.com/poison/plants/?gclid=Cj0KCQjw5auGBhDEARIsAFyNm9F7sGgBslapqhG-FSTNtfsbIMCd0gzRweCsNQIeN-sidGIL9yvI4EaAg5NEALw_wcB.
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