Sweet! So I asked myself what is Catnip? - Wikipedia answers
Nepeta cataria is mostly used as a recreational substance for feline enjoyment. Roughly two out of every three cats will be affected by the plant.... The common behaviors that are observed are: rubbing on the plant, rolling on the ground, drooling, 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 semi-hallucinogenic effects on the cat.