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 Rhubarb safe for dogs?
Rheum rhabarbarum
Rhubarb is a perennial vegetable known for its edible stalks, but its leaves contain high levels of soluble oxalate crystals that are harmful if ingested. It is widely grown in gardens for culinary use but requires caution regarding pet access to the foliage.
Pie PlantRheum rhabarbarum
- Light
- Full sun to partial shade
- Habit
- Clumping herbaceous perennial
- Care
- Moderate
Safety status
What this means for your dog
Dogs that get into the rhubarb patch face risk from the leaves, not the stalks — the leaves are loaded with soluble calcium oxalates that can cause both immediate GI distress and delayed kidney injury. Dogs are more likely than cats to chew through large amounts in one sitting, which raises the dose-related risk substantially.
What to watch for
Excessive salivation and vomiting begin shortly after ingestion, followed by lethargy, weakness, abdominal pain, and sometimes diarrhea. Watch for muscle tremors (from low blood calcium) and, 24 to 36 hours later, signs of acute kidney injury such as changes in drinking and urination, lethargy, and decreased appetite.
Time window
Drooling, vomiting, and weakness within hours of ingestion; tremors as blood calcium drops; acute kidney injury signs typically appear 24 to 36 hours after ingestion.
When to call the vet
Call your vet if your dog ate any rhubarb leaf, especially in quantity. Call right away — don't wait — if you see tremors, repeated vomiting, blood in vomit or stool, or any change in urination over the next two days. ASPCA Animal Poison Control: (888) 426-4435.
Sources: ASPCA, NC State Extension (no first-aid guidance for owners).
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
Excessive salivation, abdominal pain, vomiting, lethargy, and potential renal failure in severe cases.
Escalation note
The leaves are considered toxic to dogs. Seek veterinary attention promptly if your dog has consumed any part of the plant.
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
NC State Extension Plant Toolbox
botanical · 94% reliability
Rheum rhabarbarum is a herbaceous perennial known for its edible stalks, though leaves are toxic.
Same dog verdict
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