Please remember this Easter season, that many types of LILIES ARE HIGHLY TOXIC TO CATS . Easter lilies, tiger lilies, day lilies, stargazer lilies and oriental lilies are all extremely dangerous to cats. Within a few hours of ingestion, cats will go into acute renal failure which means the kidneys nearly shutdown, usually leading to death. Initial signs are vomiting, diarrhea, lack of appetite or dehydration. If you suspect ingestion, call your veterinarian for immediate therapy. Dogs can also get sick from lilies, but it is rarely fatal.