Honey

Used outside of battle : Immediately triggers a wild Pokémon battle, as long as the trainer is somewhere with wild Pokémon—i.e., in tall grass, in a cave, or surfing. Can be smeared on sweet-smelling trees to attract tree-dwelling Pokémon after six hours.

A sweet honey with a lush aroma that attracts wild Pokémon when it is used in grass, caves, or on special trees.