Is Philadelphus 'Virginal' toxic to cats?

Mildly. The ASPCA lists philadelphus 'virginal' 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. True Philadelphus mock orange is not individually listed on the ASPCA Toxic or Non-Toxic Plants database, so its status is unconfirmed; note also that several unrelated, poisonous shrubs share the name 'mock orange' (e.g. Prunus/Poncirus and Pittosporum). Treat with caution and verify with a vet before assuming it is safe for pets.

True Philadelphus mock orange is not individually listed on the ASPCA Toxic or Non-Toxic Plants database, so its status is unconfirmed; note also that several unrelated, poisonous shrubs share the name 'mock orange' (e.g. Prunus/Poncirus and Pittosporum). Treat with caution and verify with a vet before assuming it is safe for pets. 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 philadelphus 'virginal'.

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: Philadelphus 'Virginal' is mildly toxic to dogs as well. See the full philadelphus 'virginal' 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.