Asparagus Fern

Yes, asparagus fern (Asparagus densiflorus) is toxic to cats. Ingestion of the berries or foliage can cause vomiting, diarrhea, and abdominal pain, and repeated skin contact with the leaves can trigger allergic dermatitis.

GI signs — vomiting, soft stools or diarrhea, and belly discomfort — typically begin within a few hours and resolve within 24 hours. The ASPCA considers the toxicity mild and not expected to be life-threatening, but the berries are more concerning than the foliage, so note what part your cat chewed.

Monitor your cat closely for vomiting, diarrhea, and signs of abdominal pain such as a hunched posture or reluctance to be touched on the belly. Call your vet if symptoms persist past 12–24 hours, if your cat stops eating or drinking, or if you see blood in the vomit or stool. For any doubt, call the ASPCA Animal Poison Control Center at (888) 426-4435.

Yes — cats that rub against the plant regularly can develop allergic dermatitis, showing patchy redness, itching, or hair loss on areas that contact the feathery leaves. This is a contact reaction separate from the GI symptoms caused by ingestion.

Yes, asparagus fern (Asparagus densiflorus) is toxic to dogs. Ingestion can cause vomiting, diarrhea, and abdominal pain, while repeated skin contact with the foliage can lead to allergic dermatitis.

Expect gastrointestinal distress — vomiting, diarrhea, and belly discomfort such as whining or restlessness — typically appearing within a few hours. Symptoms usually resolve within 24 hours; the ASPCA classifies asparagus fern exposure as mild GI upset, not expected to be life-threatening.

Monitor for vomiting, diarrhea, and signs of abdominal pain. Call ASPCA Poison Control (888-426-4435) or your vet if vomiting or diarrhea continues beyond 24 hours, your dog can't keep water down, you see blood in either, or a puppy or small-breed dog has eaten a notable quantity of berries.

Yes — dogs that repeatedly brush against the plant can develop allergic dermatitis, showing as red, itchy, or hairless patches on the skin. Low-set dogs whose backs catch the foliage are particularly at risk from this contact irritation.