Is Sorrel Toxic to Dogs?

☠️ ToxicSeverity: Moderate

✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit

⚠️ Educational info only. If your pet just chewed something and looks unwell, skip the reading and call your vet or Pet Poison Helpline (US): (855) 764-7661.

Yes, sorrel is toxic to dogs. Its soluble oxalates irritate the gut and, in larger amounts, can crystallize in the kidneys.

Also known as: Garden Sorrel, Common Sorrel, Spinach Dock · Rumex acetosa

What makes it toxic

Soluble calcium oxalates throughout the leaves and stems. After absorption they bind blood calcium and form crystals in kidney tissue, a risk that scales with the amount eaten.

Warning signs to watch for

Drooling, vomiting and diarrhea within hours of eating. Significant ingestions can bring tremors, weakness, increased thirst and reduced urine output over the next day or two.

What to do if your dog eats it

Call your vet promptly after any meaningful ingestion, not just when symptoms appear — kidney bloodwork may be needed. Trembling, collapse or urination changes mean go in immediately.

Common questions

My dog grazed sorrel leaves on a walk — now what?

Note roughly how much and call your vet. Small grazes typically cause only stomach upset, but the kidney risk justifies a phone call every time.

Are dock weeds related to sorrel?

Yes — curly dock and broadleaf dock are Rumex species with the same oxalate risk, so control them in pet areas too.

How fast does kidney damage appear?

Stomach signs come within hours; kidney effects may not show for 1–3 days, which is why early vet contact matters.

More plants checked for dogs

Pothos☠️ ToxicYes, pothos is toxic to dogs. Chewing any part of the vine releases calcium oxalate crystals tha Aloe Vera⚠️ Mildly ToxicAloe vera is mildly to moderately toxic to dogs. The skin and latex layer of the leaf contain co Spider Plant✅ Non-ToxicNo, spider plants are non-toxic to dogs. A dog that nibbles the arching leaves is not at risk of Easter Lily⚠️ Mildly ToxicEaster lilies are only mildly toxic to dogs — they usually cause stomach upset, not the fatal ki Sago Palm☠️ ToxicYes — sago palm is severely toxic to dogs, with a documented fatality rate around 50% when untre Boston Fern✅ Non-ToxicNo, Boston ferns are non-toxic to dogs. Chewing a frond will not poison your dog.

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.