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Dock vs. French Sorrel: which is safe for cats and dogs?

Dock and French Sorrel are frequently compared because they both share the common name sorrel, leading to confusion for gardeners and pet owners alike. Despite their different growth habits and culinary uses, both plants are considered potentially toxic to cats and dogs. They contain soluble calcium oxalates, which can cause significant irritation to the mouth and digestive tract upon ingestion. While the severity of the reaction can vary depending on the amount consumed, neither plant is considered safe for household pets. It is important to keep both varieties out of reach to prevent accidental exposure and the resulting discomfort for your animals.

Dock

Rumex sp.

Dock is a genus of perennial herbs often found in fields and gardens that contains soluble calcium oxalates. Ingestion of any part of the plant can cause irritation to the mouth and digestive tract.

cat

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Watch for

Oral irritation, intense burning and irritation of the mouth, tongue and lips, excessive drooling, vomiting, and difficulty swallowing.

dog

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Watch for

Oral irritation, excessive drooling, vomiting, and difficulty swallowing or pawing at the mouth.

Full Dock reference →

French Sorrel

Rumex scutatus

French Sorrel is a perennial herb often grown for its tangy, edible leaves, but it contains soluble calcium oxalates that can be harmful to pets if ingested in quantity. It is characterized by its shield-shaped foliage and low-growing habit.

cat

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Watch for

Oral irritation, excessive drooling, pawing at the mouth, difficulty swallowing, and potential vomiting.

dog

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Watch for

Oral irritation, intense burning or swelling of the lips and tongue, drooling, and gastrointestinal upset.

Full French Sorrel reference →