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Is Washington Hawthorn toxic to cats?

NO (NON-TOXIC)
Good news, Washington Hawthorn 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:Haws, Pirliteiro, Red Hawthorn
Scientific Name:Crataegus species
Family:Rosaceae
Detailed Write-up
Author:
Alec
Last Updated:
7/13/25

Is Washington Hawthorn Toxic to Cats?

As a loving pet owner, you are always conscious of your cat’s health and safety. You pay careful attention to what they eat, where they play, and what they are exposed to. This is why it's essential to know which plants in your garden or home can pose a risk to your feline friend.

One such plant is the Washington hawthorn, also known by its scientific name, Crataegus phaenopyrum. It's a popular species of hawthorn tree that is grown for its attractive flowers, small fruit, and fall foliage. As with many plants, the Washington hawthorn contains chemicals that can be toxic to animals if ingested, and this leads many pet owners to wonder if it's safe for their cats.

Toxicity in Washington Hawthorn

The berries of the Washington hawthorn contain a wide array of glycosides and organic acids. These chemicals can interfere with the normal metabolic processes of cats and can cause symptoms ranging from mild to severe.

One of the most notable toxic compounds in the Washington hawthorn is amygdalin, a cyanogenic glycoside. When ingested, it can break down into hydrogen cyanide gas, a potent and poisonous compound that inhibits cell respiration and eventually leads to cell death and tissue damage.

If your cat has ingested any part of a Washington hawthorn or its berries, it's important to look out for the following signs of toxicity:

  • Vomiting
  • Diarrhea
  • Difficulty breathing
  • Weakness
  • Tremors or seizures
  • Coma

If you observe any of these symptoms, it's recommended that you seek veterinary attention immediately. Delaying treatment can lead to serious complications, including death.

Risk Factors for Washington Hawthorn Toxicity in Cats

All cats are susceptible to Washington hawthorn toxicity, but some cats may be at an increased risk. The following factors can influence how quickly and severely Washington hawthorn poisoning affects your feline friend:

  • Age: Young kittens and senior cats may be more vulnerable due to their weaker immune systems and slower metabolic rates.
  • Health: Cats with pre-existing medical conditions, such as liver or kidney disease, may struggle to eliminate the toxic compounds from their system.
  • Amount ingested: The severity of Washington hawthorn toxicity is directly proportional to the amount of plant material consumed. A small quantity may only cause mild symptoms, while large amounts can be life-threatening.

Preventing Washington Hawthorn Poisoning in Cats

While you can't always keep your cat away from plants that could pose a danger, there are various precautions you can take to minimize the risk of Washington hawthorn toxicity. These include:

  • Identify and label plants in your garden and ensure your cat cannot access them
  • Keep an eye on your cat while they're playing outdoors
  • Keep all houseplants out of reach
  • Train your cat to avoid plants
  • Supervise your cat while on walks and ensure they don't eat anything they shouldn't

By keeping an eye out for potential dangers and taking precautions, you can help ensure that your cat stays healthy and happy.

Conclusion

In conclusion, Washington hawthorn can be toxic to cats if ingested. Its berries contain various glycosides and organic acids, including cyanide compounds, which can lead to serious symptoms and even death. All cats are susceptible to toxicity, but some may be at higher risk due to age, health, or the amount consumed.

If you suspect your cat has ingested any part of a Washington hawthorn or its berries, contact your veterinarian immediately. Avoiding exposure to the plant is the best way to prevent poisoning, so be sure to keep an eye on your cat while indoors and outdoors. By taking these simple steps, you can help ensure your cat stays safe and healthy.

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