Abstract: A natural growth terrarium utilizes a frustrum shaped lower root growing container having a top opening and a bottom opening and an outwardly tapered sidewall. The terrarium also includes a separate frustrum shaped upper plant stem growing container having a top opening and a bottom opening, and an inwardly tapering sidewall. The bottom opening of the upper container is configured to be removeably attached to the top opening of the lower container, such that when the containers are connected, a plant can be grown in the terrarium and its roots allowed to spread through the lower container and its upper stem allowed to grow within the upper container. When mature, plants grown in the terrarium can be safely and efficiently relocated from the terrarium to the ground where the plants are easily replanted and the terrarium removed for reuse.