Yes, Cardinal Flower is toxic to dogs!
Dogs accidentally consuming the Cardinal Flower plants can show the following clinical symptoms: Vomiting, Prolonged Depression, Incoordination, Hypersalivaton, Sleepiness Or Excitation, Dilated Pupils, Low Body Temperature, Low Blood Pressure, Coma, Seizure And Death (In Rare Cases).
Cardinal Flower consumption is also toxic to Cats and Horses.
Toxic Principles Of Cardinal Flower: Lobeline.
More Info About The Cardinal Flower Plant
Scientific Name: Lobelia cardinalis
Family: Campanulaceae.
Also known as: Lobelia, Indian Pink.
The answer is based on information found on The American Society for the Prevention of Cruelty to Animals (ASPCA) website.
