Is Plum 'Stanley' toxic to cats?

Yes — plum 'stanley' is toxic to cats according to the ASPCA. Keep it well away from any cat that chews plants; reactions can be significant. Plum (Prunus) is ASPCA-listed as toxic to cats, dogs and horses. Stems, leaves and the stones contain cyanogenic glycosides that release cyanide, most concentrated in wilting leaves and the kernel; the ripe flesh itself is not the toxic part. Signs include brick-red mucous membranes, dilated pupils, panting, breathing difficulty and shock. Prevent pets from chewing prunings or fallen stones.

Plum (Prunus) is ASPCA-listed as toxic to cats, dogs and horses. Stems, leaves and the stones contain cyanogenic glycosides that release cyanide, most concentrated in wilting leaves and the kernel; the ripe flesh itself is not the toxic part. Signs include brick-red mucous membranes, dilated pupils, panting, breathing difficulty and shock. Prevent pets from chewing prunings or fallen stones. 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 plum 'stanley'.

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 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: Plum 'Stanley' is toxic to dogs as well. See the full plum 'stanley' 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.