Lilies: Several species of lilies, including Easter and tiger lilies, are hazardous to cats. Ingesting even a little can damage kidneys.
Azalea: Azaleas include chemicals that can induce vomiting, diarrhea, and more serious difficulties if consumed by pets.
Oleander: The Oleander plant is harmful to dogs, cats, and horses. Ingestion can cause serious digestive and heart complications.
Sago Palm: All parts of the Sago Palm, including the seeds, are harmful to pets. Ingestion can cause liver failure and death.
Autumn Crocus: The Autumn Crocus contains colchicine, which can lead to severe gastrointestinal irritation, kidney and liver damage, respiratory failure, and even death.
Foxglove: Ingestion of Foxglove can cause cardiac difficulties in pets due to its heart-related toxins.
Philodendron: Philodendrons may cause irritation, swelling, and pain in pets due to calcium oxalate crystals in their mouths and digestive tracts.