Is Silver Lady Fern toxic to cats?

Mildly. The ASPCA lists silver lady fern as mildly toxic to cats — a chewing cat typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. Treated conservatively as mildly toxic pending veterinary confirmation. Blechnum gibbum is not individually listed in the ASPCA toxic/non-toxic plant database, and no member of its genus (Blechnum, family Blechnaceae) is listed at all, so there is no ASPCA basis to certify it pet-safe. The similarly named ASPCA "Silver Table Fern" is a different plant, Pteris sp. (family Pteridaceae), and does not apply here. Reassuringly, it is a true fern, true ferns carry no recognised toxic principle, and every true fern the ASPCA does evaluate (Boston, maidenhair, button and mother fern) is rated non-toxic; growers widely sell it as pet-friendly. Even so, until your own vet or the ASPCA Animal Poison Control Center (888-426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK) confirms, keep fronds out of reach, as nibbling any plant can cause mild stomach upset.

Treated conservatively as mildly toxic pending veterinary confirmation. Blechnum gibbum is not individually listed in the ASPCA toxic/non-toxic plant database, and no member of its genus (Blechnum, family Blechnaceae) is listed at all, so there is no ASPCA basis to certify it pet-safe. The similarly named ASPCA "Silver Table Fern" is a different plant, Pteris sp. (family Pteridaceae), and does not apply here. Reassuringly, it is a true fern, true ferns carry no recognised toxic principle, and every true fern the ASPCA does evaluate (Boston, maidenhair, button and mother fern) is rated non-toxic; growers widely sell it as pet-friendly. Even so, until your own vet or the ASPCA Animal Poison Control Center (888-426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK) confirms, keep fronds out of reach, as nibbling any plant can cause mild stomach 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 cat has had access to silver lady fern.

Stay calm. Remove any plant from your cat'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 in the US, or Animal PoisonLine on 01202 509 000 in the UK 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: Silver Lady Fern is mildly toxic to dogs as well. See the full silver lady fern pet-safety guide for both species.

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