Is Borage Toxic to Cats?
Also known as: Starflower, Bee Bush, Borago officinalis · Borago officinalis
What makes it toxic
Pyrrolizidine alkaloids (including lycopsamine-type compounds) in leaves, flowers and stems. They cause acute gut irritation and, with chronic intake, cumulative liver injury.
Warning signs to watch for
Vomiting, diarrhea and drooling after a single meal. Chronic exposure shows as weight loss, poor appetite and jaundice from liver damage.
What to do if your cat eats it
Remove plant material, offer water and call your vet after any meaningful amount. Prevent repeat access entirely — the liver risk accumulates with repeated ingestion.
Common questions
Is borage safe as a garden companion plant if my cat only sniffs it?
Yes — sniffing and brushing are harmless. The concern is eating, especially repeatedly, so keep cats from grazing on it.
Are borage flowers in salads a risk if my cat shares a bite?
A tiny taste is unlikely to matter, but do not make a habit of sharing. The alkaloid load is the issue with any regular intake.
More plants checked for cats
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.