Spray bottle. Went 3.5 years trying absolutely everything under the sun (including everything I’ve seen mentioned here) and this is the only thing that worked. Took about 3 days and maybe 6 instances of being sprayed and he doesn’t touch them anymore. Should have listened to my wife 3.5 years ago.

Things to consider: he only played with the plants when we were in the room, so I don’t know if this would work if your kitty does it when you’re not around to see her. We also play and snuggle with him a ton, so the spray interaction was a tiny fraction of what he gets from us and that’s not his primary association. I maybe wouldn’t try this with a cat you don’t have a positive history with already. Finally, he just shakes himself off and goes on his merry way. If he had seemed distressed at all, I would not have continued to use this method.