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Toxic to cats, dogs, and horses. Contains grayanotoxin which causes cardiovascular collapse, diarrhea, vomiting (in cats and dogs, not horses), and general weakness.

Toxic to cats, dogs, and horses. Beans are extremely toxic and may cause convulsions, oral burning (mouth and throat), thirstiness, diarrhea, and vomiting. Symptoms may start with a loss of appetite, weakness, trembling, breathing issues, fever, and eventual central nervous system shut-down leading to coma and death. These plants contain ricin, a highly toxic chemical that can reach deadly amounts in only one ounce of seeds.

Toxic to cats, dogs, and horses. Lethal if chewed; extremely toxic. They may cause convulsions, oral burning (mouth and throat), thirstiness, diarrhea, vomiting, and even death.

Toxic to cats, dogs, and horses. Causes heart arrhythmias if the root/tuber is eaten in large quantities, otherwise just upset stomach.

Toxic to cats, dogs, and horses. Daffodils, especially the bulb, cause convulsions, tremors, and heart arrhythmia. Photo courtesy of Karen James, VIN.

Toxic to cats, non-toxic to dogs and horses. Known to cause kidney failure in cats, inappetence, vomiting, and even death.

Toxic to cats, dogs, and horses. Affects the heart; may cause arrhythmias and heart failure, diarrhea and vomiting, weakness, and even death.

Toxic to dogs, cats, goats, cattle, sheep, rabbits, and horses. Oleander contains chemicals that affect the heart, potentially causing arrhythmias, blood pressure issues, diarrhea, vomiting, neurological signs, and shock.

Toxic to cats, dogs, and horses. These plants can cause increased thirst, vomiting, hemorrhagic gastroenteritis causing bloody diarrhea, issues with blood clotting, liver damage, or even failure. Death is possible. Sago palms are often used as potted plants as well as planted outdoors.

Toxic to cats- Kidney failure, inappetence, lethargy and weakness, vomiting, and even death. Non-toxic to dogs and horses.

Toxic to cats – Non-toxic to dogs and horses. For cats- inappetence, kidney failure, lethargy, vomiting, and even death are possible. Some tiger lilies have spots. Other daylilies as shown above also cause kidney failure in cats.

Toxic to cats, dogs, and horses. Diarrhea, lethargy, tremors, and vomiting (although no vomiting in horses) are possible.

Toxic to cats, dogs, and horses. The most toxic parts of the plant are underground but can cause cats and dogs to salivate and vomit. Oxalate crystals in the plant embed in the mouth causing pain and inflammation. *Kidney failure is possible in grazing animals.

(Strelitzia reginae) Toxic to cats, dogs, and horses. Mainly the seeds and fruit can cause drowsiness, and GI distress (diarrhea and vomiting). *Note: Caesalpinia or Poinciana gilliesii are also known as Bird of Paradise plants and are more toxic.

Toxic to cats and dogs- Severe oral (lips, mouth, tongue) burning and irritation may occur in addition to drooling, swallowing difficulty, and vomiting.

Toxic to cats, dogs, and horses. Carnations exist in many colors (pink, red, white, etc.) and can cause an upset stomach and mild dermatitis (skin irritation and inflammation).

Toxic to cats, dogs, and horses. Causes diarrhea, drooling, incoordination, and vomiting (no vomiting in horses).

Toxic to cats, dogs, and horses. Causes anorexia, drooling, depression, and incoordination. Diarrhea and vomiting are possible and may be bloody. (No vomiting in horses.)

Non-toxic but may cause GI upset in general.

*Daisy is a very common name, and not all plants within the family Asteraceae and called daisy have the same properties (toxic/non-toxic variability). Chrysanthemum species are toxic to dogs and cats and may cause dermatitis, diarrhea and vomiting, hypersalivation and wobbliness/incoordination.

Toxic to cats and dogs- Severe oral (lips, mouth, tongue) burning and irritation may occur in addition to drooling, swallowing difficulty, and vomiting.

Toxic to cats, dogs, and horses. Causes irritation, pain, and swelling of the mouth (including lips and tongue), trouble swallowing, excessive drooling, and vomiting (no vomiting in horses).

Toxic to cats, dogs, and horses. Fleabane is irritating to the GI tract and skin, causing mild stomach/intestinal upset and dermatitis.

Toxic to cats, dogs, and horses. Causes upset stomach (mild vomiting/diarrhea though no vomiting in horses) and hives.

(Pelargonium species) Toxic to cats, dogs, and horses- GI upset, anorexia, vomiting, depression, and skin irritation/dermatitis. Photo by Dr. Teri Ann Oursler

Non-toxic to cats, dogs, and horses, but may cause stomach upset.

Toxic to cats, dogs, and horses- GI issues may occur including diarrhea and vomiting. Depression and lethargy are also possible.

Toxic to cats, dogs, and horses. The bulb is the most toxic part of this plant. Drooling, lethargy, diarrhea and vomiting are possible (no vomiting in horses).

Toxic to cats and dogs. Causes GI upset and rarely can cause heart arrhythmias.

Toxic to cats and dogs- GI upset including diarrhea, nausea, and vomiting may occur.

Toxic to cats and dogs- Severe oral (lips, mouth, tongue) burning and irritation may occur in addition to drooling, swallowing difficulty, and vomiting.

Toxic to dogs and cats. Causes mild upset stomach and dermatitis.

NOTE: Plumbago is a common name for two different plant species. Plumbago species can cause dermatitis in animals. Ceratostigma species are nontoxic.

Toxic to cats, dogs, and horses. Causes mild stomach upset, and vomiting.

(Gerber or Gerbera Daisy)

Courtesy of Depositphotos

Courtesy of Depositphotos