Is Delphinium 'Black Knight' toxic to dogs?

Yes — delphinium 'black knight' is toxic to dogs according to the ASPCA. Keep it well away from any dog that chews plants; reactions can be significant. ASPCA-listed as toxic to cats, dogs and horses. The toxic principle is diterpene alkaloids; clinical signs include drooling, colic, constipation, muscle tremors, stiffness, weakness and convulsions, with possible cardiac failure or fatal respiratory paralysis in large ingestions. Young growth and seeds are most potent.

ASPCA-listed as toxic to cats, dogs and horses. The toxic principle is diterpene alkaloids; clinical signs include drooling, colic, constipation, muscle tremors, stiffness, weakness and convulsions, with possible cardiac failure or fatal respiratory paralysis in large ingestions. Young growth and seeds are most potent. 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 dog has had access to delphinium 'black knight'.

Stay calm. Remove any plant from your dog'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: Delphinium 'Black Knight' is toxic to cats as well. See the full delphinium 'black knight' pet-safety guide for both species.

For a similar look without the risk, see the best dogs-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.