Is Athyrium filix-femina 'Frizelliae' toxic to dogs?

Mildly. The ASPCA lists athyrium filix-femina 'frizelliae' as mildly toxic to dogs — a chewing dog typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. Athyrium filix-femina is not individually listed on the ASPCA Toxic/Non-Toxic Plants database. True ferns, including lady fern, are generally considered non-toxic to cats and dogs and are not flagged as poisonous, but because the species is not individually ASPCA-listed, treat with caution and verify with a vet. Ingestion may cause mild gastrointestinal upset.

Athyrium filix-femina is not individually listed on the ASPCA Toxic/Non-Toxic Plants database. True ferns, including lady fern, are generally considered non-toxic to cats and dogs and are not flagged as poisonous, but because the species is not individually ASPCA-listed, treat with caution and verify with a vet. Ingestion may cause mild gastrointestinal upset. Signs usually appear soon after chewing rather than hours later — watch for drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy after your dog has had access to athyrium filix-femina 'frizelliae'.

Stay calm. Remove any plant from your dog's mouth and take the plant away. Note how much was eaten and when, and do not induce vomiting unless told to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice; a leaf or photo helps the vet treat it correctly.

The ASPCA classification Growli uses applies to both cats and dogs: Athyrium filix-femina 'Frizelliae' is mildly toxic to cats as well. See the full athyrium filix-femina 'frizelliae' pet-safety guide for both species.

For a similar look without the risk, see the best dogs-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.