Slightly toxic - poisoning unlikely
Experts identify the sword fern as 'slightly poisonous'. This applies to both humans and animals. This property distinguishes it greatly from many other ferns such as the bracken, which is considered to be highly toxic. Skin contact does not trigger any allergic reactions either.
Basically, the sword fern is largely harmless. If your child or pet tries some of this plant, don't worry. If too much has been eaten, the body usually gets rid of the toxins itself by causing vomiting.
Tips
Plant the easy-care sword fern in hanging baskets that you can attach to the ceiling of the bathroom, for example. That's out of the reach of cats, dogs, and toddlers.
