I’ve never heard of this trick, thanks!Hey! How frustrating! I would suggest going to your local thrift store and buying lots of metal forks. Put them in the soil tine side up, so kitty doesn't want to jump in the pots! Doesn't impact the plants at all. I used this method when teaching my kitten not to climb my plants. It also keeps other critters out of your pots. I'd also suggest flushing your soil to try and get all the urine out of the soil. Best of luck!