Nepeta

Chunks of information

"Nepeta cataria is mostly used as a recreational drug for pet cats' enjoyment. Roughly 50% of cats will be affected by the plant, whether it is growing in the wild or harvested and dried. Approximately two hours after an exposure, the feline will be sensitive to another dose. The common behaviors that are observed are: rubbing on the plant, rolling on the ground, drooling, sleepiness, anxiety, or consuming much of the plant. The plant terpenoid nepetalactone is the main chemical constituent of the essential oil of Nepeta cataria and acts as a feline attractant. This chemical enters the feline's nose, and produces effects on the cat." - Wikipedia
My Nepeta plant is often visited by cats and they do show this type of behavior.