Both of my cats love catnip and both react differently to it. My older tabby (Trevor) rubs his cheeks in it and rolls all over the floor and looks just so content. My younger cat (Andy) attacks it. It sort of makes him hyperactive and he's so funny to watch. I grow it in my back yard and the other day I was bringing some inside. Andy was asleep on a kitchen chair and as I walked past him with the catnip in my hand he woke up and came running and meowing. It has a very strong scent (not particularly pleasant to humans, if you ask me! )