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Is Coreopsis Toxic to Dogs?

⚠️ Mildly ToxicSeverity: Mild
✅ 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.
Coreopsis has a clean safety record for dogs and is commonly sold as a pet-friendly garden plant, though it carries no formal non-toxic certification.

Also known as: Tickseed, Calliopsis · Coreopsis spp.

What makes it toxic

No documented toxin for dogs. As with any plant, eating a large amount of foliage can cause mild mechanical GI upset.

Warning signs to watch for

At most: mild vomiting or loose stool after bulk grazing. Nothing worse has been reported.

What to do if your dog eats it

No action required beyond watching the dog. Contact your vet only if GI signs continue beyond a day.

Common questions

Is coreopsis on the ASPCA safe list?

It is not formally listed either way. Its reputation comes from an absence of reported poisonings, which is why the practical advice is low-risk rather than guaranteed safe.

My dog grazes the tickseed border daily — should I worry?

The plant is unlikely to poison him, but chronic grazing is a habit to manage and a sign to check his diet for fiber or boredom causes.

More plants checked for dogs

Pothos☠️ ToxicYes, pothos is toxic to dogs. Chewing any part of the vine releases calcium oxalate crystals thaAloe Vera⚠️ Mildly ToxicAloe vera is mildly to moderately toxic to dogs. The skin and latex layer of the leaf contain coSpider Plant✅ Non-ToxicNo, spider plants are non-toxic to dogs. A dog that nibbles the arching leaves is not at risk ofEaster Lily⚠️ Mildly ToxicEaster lilies are only mildly toxic to dogs — they usually cause stomach upset, not the fatal kiSago Palm☠️ ToxicYes — sago palm is severely toxic to dogs, with a documented fatality rate around 50% when untreBoston 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.