Is Sword Fern Toxic to Dogs?

✅ Non-Toxic

✅ 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.

No, sword fern is non-toxic to dogs. Dogs can safely chew a few fronds of this common garden and houseplant fern.

Also known as: Boston Fern, Wild Boston Fern, Nephrolepis exaltata · Nephrolepis exaltata

What to do if your dog eats it

No action required. Only large quantities of any rough plant matter could cause simple stomach upset.

Common questions

Why did my dog vomit after eating fern fronds?

Fiber bulk from any plant can trigger a quick, harmless vomit. Offer water and watch for anything repeated.

Is the garden sword fern different from the potted one?

Sword fern sold in pots is Nephrolepis exaltata, the Boston fern species. Some regional wild ferns share the common name, so confirm the species before clearing a trail snack as safe.

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.