Glad you asked...
There are many types of plants that are poisonous to cats especially lilies. Hyacinths, Eucalyptus, and Tiger Lilly are just a few that a cat may not eat off of. If your cat does get into one of these you should have them looked at by your local veterinarian as it could make your cat really sick or they may even die. You can find more information here:
http://www.cfa.org/articles/plants.html...