Pet safety
Is Autumn Ferntoxic to cats & dogs?
Dryopteris erythrosora
Quick verdict — at a glance
- Toxic to cats?
- Yes — mildly
- Toxic to dogs?
- Yes — mildly
- ASPCA classification
- Mildly toxic to pets · botanical name Dryopteris erythrosora
Is autumn fern safe for cats and dogs?
Not entirely — autumn fern is mildly toxic to cats and dogs. It rarely causes serious harm, but chewing it triggers real discomfort, so keep it out of a pet's reach. This classification follows the ASPCA Toxic and Non-Toxic Plant List, the most widely used reference for companion-animal plant safety in the US and the standard most UK vets cite as well. Dryopteris erythrosora is not individually listed in the ASPCA toxic or non-toxic plant database, and no member of the genus Dryopteris appears on either ASPCA list. The non-toxic Boston fern is a different genus (Nephrolepis), so we cannot infer safety from it. Treat autumn fern as mildly toxic and verify with your vet before allowing pets to chew it.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes (mild) | Mildly toxic to pets |
| Dogs | Yes (mild) | Mildly toxic to pets |
What happens if a pet eats autumn fern?
Dryopteris erythrosora is not individually listed in the ASPCA toxic or non-toxic plant database, and no member of the genus Dryopteris appears on either ASPCA list. The non-toxic Boston fern is a different genus (Nephrolepis), so we cannot infer safety from it. Treat autumn fern as mildly toxic and verify with your vet before allowing pets to chew it. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to autumn fern, treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate autumn fern
- Remove any plant material from your pet's mouth and move autumn fern out of reach.
- Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
- Do not induce vomiting unless a vet or poison-control specialist instructs you to.
- Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
- Bring a leaf or photo of autumn fern to the appointment so it can be treated correctly.
This page is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide rather than the plant. If you are worried, always contact a vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.
Pet-safe alternatives to autumn fern
Want the same look without the risk? These plants are listed as non-toxic to cats and dogs by the ASPCA and have similar care needs:
- Peperomia — non-toxic to cats and dogs (care guide)
- Cast iron plant — non-toxic to cats and dogs (care guide)
- Spider plant — non-toxic to cats and dogs (care guide)
- Ponytail palm — non-toxic to cats and dogs (care guide)
Autumn Fern and pets — frequently asked questions
Is autumn fern toxic to cats?
Autumn Fern (Dryopteris erythrosora) is mildly toxic to pets to cats according to the ASPCA. Dryopteris erythrosora is not individually listed in the ASPCA toxic or non-toxic plant database, and no member of the genus Dryopteris appears on either ASPCA list. The non-toxic Boston fern is a different genus (Nephrolepis), so we cannot infer safety from it. Treat autumn fern as mildly toxic and verify with your vet before allowing pets to chew it. Keep it out of reach and contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 if your cat chews it.
Is autumn fern toxic to dogs?
The ASPCA lists the same toxicity status for dogs as for cats: Autumn Fern is mildly toxic to pets. Dogs often chew more enthusiastically than cats, so a toxic plant like autumn fern is best removed from the floor and low shelves entirely.
What happens if my pet eats autumn fern?
Dryopteris erythrosora is not individually listed in the ASPCA toxic or non-toxic plant database, and no member of the genus Dryopteris appears on either ASPCA list. The non-toxic Boston fern is a different genus (Nephrolepis), so we cannot infer safety from it. Treat autumn fern as mildly toxic and verify with your vet before allowing pets to chew it. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to autumn fern, treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate autumn fern?
Stay calm. Remove any remaining plant material from your pet's mouth and take the plant away so they cannot eat more. Note roughly how much was eaten and when. Do not make your pet vomit unless a vet or poison-control specialist tells you to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice. Bringing a photo or a leaf of autumn fern to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to autumn fern?
If you want a similar look without the risk, good non-toxic swaps include peperomia, cast iron plant, spider plant, ponytail palm. All of these are listed as non-toxic to cats and dogs by the ASPCA, so they suit a home where pets have access to your plants.
Full autumn fern care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete autumn fern care guide, or browse the full pet-safe plant library to check another plant before you buy it.