The technical description relates to buoyant devices, buoyant systems, and methods of placing buoyant devices containing a plant in a liquid. An example buoyant device includes an outer member having an upper surface, a lower surface, a side extending from the upper surface to the lower surface, and a passageway extending from the upper surface to the lower surface and an inner member having an upper surface, a lower surface, a side extending from the upper surface to the lower surface, and a passageway extending from the upper surface to the lower surface. The inner member is releasably attached to the outer member.
