According to the American Society for the Prevention of Cruelty to Animals, camellia is not toxic to cats, dogs and horses. However, cats that consume plant material often have uncomfortable gastrointestinal symptoms such as diarrhea and vomiting.Click to see full answer. Just so, are camellia flowers toxic? Camellias & Pets According to the American Society for the Prevention of Cruelty to Animals, Camellia japonica is not poisonous to pets including dogs, cats and horses. However, if your pets consume large quantities of either of these plants, you should watch them closely for signs of illness.Beside above, are snake plants toxic to cats? The snake plant contains toxic saponins capable of causing illness in a cat. The plant has these toxins as natural insecticides and fungicides. The only serious threat that this plant poses is a potentially severe allergic reaction that could lead to swelling of the oral and esophageal tissues. which flowers are poisonous to cats? Here’s a list of some common plants that are toxic to cats: Amaryllis (Amaryllis spp.) Autumn Crocus (Colchicum autumnale) Azaleas and Rhododendrons (Rhododendron spp.) Castor Bean (Ricinus communis) Chrysanthemum, Daisy, Mum (Chrysanthemum spp.) Cyclamen (Cyclamen spp.) Daffodils, Narcissus (Narcissus spp.) What lilies are poisonous to cats?Lilies in the “true lily” and “daylily” families are very dangerous for cats. The entire lily plant is toxic: the stem, leaves, flowers, pollen, and even the water in a vase.