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.
Questions about Rhubarb
Is rhubarb toxic to dogs?
Yes, rhubarb is potentially toxic to dogs, particularly the leaves, which contain high levels of soluble oxalate crystals. Even the stalks should be kept away from dogs. Seek veterinary attention promptly if your dog has consumed any part of the plant.
What are the symptoms of rhubarb poisoning in dogs?
Symptoms begin within hours and include excessive drooling, vomiting, abdominal pain, lethargy, and weakness. As blood calcium drops, muscle tremors can develop. Acute kidney injury — signaled by changes in drinking and urination, decreased appetite, and worsening lethargy — typically appears 24 to 36 hours after ingestion.
What part of rhubarb is dangerous to dogs?
The leaves are the most toxic part, containing high concentrations of soluble oxalate crystals. The stalks are the edible portion used in cooking, but the entire plant should be considered off-limits for dogs given the severity of potential harm.
What should I do if my dog ate rhubarb leaves?
Call your vet right away — do not wait for symptoms to appear. Seek immediate care if you see tremors, repeated vomiting, blood in vomit or stool, or any change in urination in the 24 to 48 hours after ingestion, as these can signal acute kidney injury. You can also contact the ASPCA Animal Poison Control Center at (888) 426-4435.
Same dog verdict
Related plants for dogs
Peace Lily
Spathiphyllum
The Mauna Loa Peace Lily is a popular indoor plant known for its elegant white spathes and lush foliage. It contains insoluble calcium oxalate crystals that can cause irritation upon contact or ingestion.
Potentially toxic for cats & dogs.
Hosta
Hosta plantaginea
Hosta plantaginea is a popular shade-loving perennial known for its lush, broad foliage and fragrant white flowers. While prized in garden landscapes, it contains saponins that can cause gastrointestinal distress if ingested by pets.
Potentially toxic for cats & dogs.
Meadow Buttercup
Ranunculus acris
Ranunculus acris is a perennial herbaceous plant known for its bright yellow flowers and presence in meadows. It contains compounds that can cause irritation upon contact or ingestion.
Potentially toxic for cats & dogs.
Monstera
Monstera deliciosa
Monstera deliciosa is a popular tropical houseplant known for its large, fenestrated leaves and vining growth habit. It contains insoluble calcium oxalate crystals that can cause irritation if ingested by pets.
Potentially toxic for cats & dogs.