Yes, hosta plants are toxic to dogs.
Hosta is a genus of herbaceous perennial plants under the Asparagaceae family. They are ornamental plants native to northeast Asia that were once classified under the Liliaceae family. Most of its species have wide, heart-shaped green leaves. However, some have unique coating colourings or variegations. There are about 45 species split into three subgenera.
Aside from Hosta, the plant also goes by the names plantain lilies, funkia, or gibōshi. It is surprising to know that this outdoor plant may be eaten by humans, but it is actually toxic to dogs, cats, and horses. Both the American Society for the Prevention of Cruelty to Animals (ASPCA) and Pet Poison Helpline list them under toxic plants for pets.
What to do if your dog accidentally comes into contact with, chews, or eats hosta plants: Hosta plants contain bitter-tasting saponins that can harm your canine pet. When bitten or eaten, the plant releases toxic organic chemicals that can cause vomiting, diarrhea, and depression. Loss of appetite and lethargy may also manifest in some cases. If your dog rubs his body against a hosta plant, he may also experience skin irritation.
Though it is not imperative to bring your dog to the veterinarian, you should keep a close eye on him over the next 24 hours. Take him to the emergency clinic if he has blood in his stool, or experiences symptoms beyond one day.
In summary: Many people like growing hosta plants because of their ability to thrive in low light levels. Though canine owners may be tempted to own them, it is not recommended as the hosta plant can cause gastrointestinal upset.
Before you receive a bouquet of flowers or buy an ornamental plant, check out these lists by ASPCA, PetMD, and Pet Poison Helpline. They’ll help you determine which ones are safe for dogs.
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