Everyone loves lilies, those glorious, fragrant flowers that immediately brighten up a room. Even our curious felines may feel the urge to nibble at these beauties. However, lily toxicity in cats is a well recognized illness. Most species of lilies and all parts of the plant and flowers cause a profound toxicity when ingested by cats. Cats become exposed by nibbling at flowers or leaves in the house or garden, licking the pollen off their fur or even by drinking the water that the lilies are in.