Basically a series of hanging planters suspended from the ceiling, the french brand Teracrea commissioned different modern designers to design planters for use indoors. The Hanging Planter uptop was designed by the now very famous Bouroullec Brothers and is pretty straightforward (probably straightforward enough to build one yourself, if you're handy). The key is to make sure your ceiling can take the weight of soil, plants and the hanging system, itself. We could only find the system for sale in Europe (and it's not cheap) so consider this more inspiration for how to divide a space and less a product to go and buy. If you're interested in something similar, Pottery Barn sells an outdoor version that could be modified for indoors.
Have you used plants to help divide up a space?