This cute little Peperomia is found in Peru and Ecuador, and perhaps elsewhere in South America.  Its leaves only grow to be about 1″, and the entire plant stays under 6″ in my experience.  Perhaps given something to lean on, it could get a little taller.  It is tolerant of a wide variety of terrarium conditions, but doesn’t seem to like standing water on its leaves.

Available plants are well-rooted in 2″ pots. They will be shipped potted. The last photo is representative of the size plant you will receive.