Is Hibiscus Poisonous To Pets. So if your dog ingests a root of any hibiscus species, you should immediately consult your vet. The hibiscus plant is toxic to cats, dogs and horses.

In recent years, the tropical shrub hibiscus has become almost as trendy in the food world as avocado. “most hibiscus are fine, but there are a couple of varieties that are poisonous to dogs in particular, and unless you know which one that is, it can be dangerous,” tegzes says. If the dog eats a higher amount of hibiscus, the dog can be vomiting, diarrhea, nausea, etc.