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Is Honeysuckle Toxic to Dogs?

☠️ 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.
Yes, honeysuckle is mildly toxic to dogs. Chewing leaves or eating berries can cause stomach upset; the berries are the most concentrated part.

Also known as: Woodbine, Japanese Honeysuckle, Lonicera · Lonicera japonica

What makes it toxic

Saponins and cyanogenic glycosides in the foliage and berries of many Lonicera species, which irritate the gut and can stress cellular oxygen handling in quantity.

Warning signs to watch for

Vomiting, diarrhea, drooling and lethargy within hours. Large berry consumption may add weakness or tremors.

What to do if your dog eats it

Take the material away, offer water and monitor for a day. Call the vet after significant berry ingestion or if vomiting is repeated.

Common questions

My dog grazed the honeysuckle hedge — serious?

Usually just GI upset. Watch for a day and call the vet if vomiting persists or the dog seems weak.

Do all honeysuckle species carry toxins?

Most Lonicera species contain saponins, with levels varying by species. Treat any honeysuckle as mildly toxic and discourage grazing.

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.