Long ago the knowledge and the technology required to raise high buildings went lost

Far to be a problem for the Greenlings, that, to lazy to build anything , went on to make their walks and watering and seeding all around

But soon was more and more evident that was something different in the grow,
not just the single plants but also the Greenling's Houses and the field around the houses were growing bigger and bigger , higher and higher, a new and new floors were raising

and so born Ruralia

below one the upper floors of one of the houses