Despite looking like eggs, Exeggcute is actually more closely related to plant seeds. It is believed to carry genes of plants and other species.

Exeggcute gathers in swarms of six. The heads communicate with each other by using a form of telepathy that only they can understand. Should the number of Exeggcute be reduced to less than six, the remaining Exeggcute will attempt to replace it with a similarly sized Pokémon as seen in the anime. It needs six Exeggcute in order to stay balanced or else it becomes nervous and cowardly. Pidgeotto and Crabrawler are its natural predators, which it chases off with psychokinesis. Exeggcute inhabits jungles and forests. Exeggcute in the Alola region tend to be heavier than those from elsewhere. This is due to the shells being packed full.