Dogs
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
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
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.
Dogs — concern 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
Questions about French Sorrel
Is French Sorrel toxic to dogs?
Yes, French Sorrel (Rumex scutatus) is potentially toxic to dogs. It contains soluble calcium oxalates that cause oral irritation, intense burning or swelling of the lips and tongue, drooling, and gastrointestinal upset. Larger ingestions can lead to more serious systemic effects including low blood calcium and, 24–36 hours later, signs of acute kidney injury.
What symptoms will my dog show after eating French Sorrel?
Small ingestions typically cause drooling, vomiting, diarrhea, and abdominal discomfort within a few hours. A significant amount can drop blood calcium enough to cause weakness, muscle fasciculations, or seizures, and urination changes or lethargy may appear 24–36 hours after exposure — so monitor your dog for at least two days.
What should I do if my dog ate French Sorrel?
Remove the plant and give your dog access to fresh water. Do not induce vomiting at home. Note how much was eaten and when, and bring a plant sample to your vet if possible — bloodwork and IV fluids are the mainstays of treatment for larger ingestions. Call the ASPCA Animal Poison Control Center at (888) 426-4435 right away if your dog ate more than a small mouthful or if you're unsure.
How long after eating French Sorrel do kidney problems develop in dogs?
Initial GI signs can appear within a few hours of ingestion, but delayed kidney signs — including changes in urine output, ongoing lethargy, and weakness — typically develop 24–36 hours after exposure. Because of this delayed window, watch your dog closely for at least two days even if they seem to recover quickly at first.
Same dog verdict
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