French Sorrel — (c) Nuuuuuuuuuuul, some rights reserved (CC BY)
Photo by (c) Nuuuuuuuuuuul, some rights reserved (CC BY)iNaturalistCC BY
dog safety reference

Is French Sorrel safe for dogs?

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.

Garden sorrelRumex scutatusShield-leaf sorrelSorrel
Light
Full sun to partial shade
Habit
Low-growing, clumping perennial
Care
Low

Safety status

Dogs

Potentially toxic

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

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

What this means for your dog

Dogs: caution. The leaves contain soluble oxalates — different from the burning calcium-oxalate houseplants because the oxalate is absorbed and only causes problems once it reaches the kidneys. A nibble usually causes only GI upset, but a large ingestion is a different problem entirely.

What to watch for

Drooling, vomiting, diarrhea, and abdominal discomfort with small ingestions. Large amounts can drop blood calcium enough to cause weakness, muscle fasciculations, and seizures, and can later cause changes in urine output and signs of acute kidney injury 24–36 hours after the plant was eaten.

Time window

Initial GI signs can appear within a few hours of ingestion. Delayed kidney signs (urination changes, lethargy, ongoing weakness) typically show up 24–36 hours after exposure, so watch for at least two days.

When to call the vet

Call right away if your dog ate more than a small mouthful, if you see tremors, weakness, or any change in urination, or if GI signs don't settle within a few hours. Small bites in a healthy dog usually warrant monitoring rather than an ER trip — but call if you're unsure.

First aid at home

Take the plant away and give your dog access to fresh water. Do not induce vomiting at home. Note how much was eaten and when, and bring a sample of the plant to the vet if possible — bloodwork and IV fluids are the mainstays of treatment for larger ingestions.

Sources: ASPCA, Pet Poison Helpline.

If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.

Dogsconcern notes

Common signs

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

Escalation note

Ingestion of significant amounts may lead to more severe systemic effects due to oxalate absorption. Always consult a veterinarian if ingestion occurs.

Safer alternatives

No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.

Source evidence

Cats & dogs pagecats pageMy dog ate French Sorrel

Same dog verdict

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