Daylilies are toxic to cats, but not to dogs or humans. However, they may cause stomach upset to dogs if ingested. They look similar to true lilies which are extremely toxic to both dogs and cats. See more Common Poisonous Plants for Dogs and Cats. Are daylilies rabbit and deer resist...
Related to day lilies:hostas day·lil·y orday lily(dā′lĭl′ē) n. Any of various perennial plants of the genusHemerocallis,native to Eurasia and widely cultivated for their large colorful flowers, which remain open for only one day. Also calledhemerocallis. ...