Is The Passion Flower Poisonous to Dogs?

passion flower image by Alison Bowden from

There are over 500 species in the Passiflora, or passion flower, genus. These delicate tropical plants are favoured by gardeners for their showy flowers. Although grand in appearance, passion flower plants pose a danger to canine companions.


Passion flowers commonly appear as climbing vines, though some plants appear as trees. Flower colours range from white and yellow to purple and blue to red and orange.


Passion flower plants contain chemicals that, when broken down by the body, release cyanide. The Governor Animal Clinic in San Diego, California, advises pet owners to consider all parts of the plant, except for ripe fruits, toxic.


Seek emergency veterinary treatment immediately if you suspect your dog has eaten parts of the passion flower plant.