Dianthus passes the cat taste test.
Eat only the soft petals for a very sweet nutmeg and clove scented treat. I don't think they are a regular part of cat diet.
Violets are also edible, but do not try irises or lilies.
Get your human to check the list of plants that are poisonous to cats before you sample anything.
Now I must get ready to go out. Cloudy this morning and cold.
Hurry up Lynettea.