I grow it, mostly outdoors though. Most of that is from the best strain of Catnip that was ever grown, Mountain Lion. I don't think they are in business anymore, but I found an old tube of "Black Tie" with a few buds and separated the seeds. "Black Tie" was the whole bud, the top apical dominant bud.. tied with a black silk string. I used to get it for my cats at Christmas. In containers, and bags.. inside the shipping box, sealed and taped really well they smelled it through the packaging and went ape shit and openingit. It was super fragrant, very much like being knocked over opening a bag of prime cannabis. So thats the strain I am growing, its a strain worth keeping alive.
I have tried "Kitty Chronic" and it wasnt even close... barely better than the schwag at pet stores. Dont get me started on the shit they sell at Whole Foods... leaves and stems. Catnip should be whole bud, super fragrant, well cured and loaded with trichomes. Same qualities you look for in good weed... cept for the THC content not nearly as high.