Tryptique Architecture is (porously) paving the way for the integration of natural systems and growth into the structure and function of architecture.  In Sao Paulo, Brazil  they created a “mineral/vegetated skin”  for a three story building of six artist studios called Harmonia 57.  The walls are made of a porous mixture of sand, cement, and verniculatis within which large pores are created from molds to hold a variety of plant species.  The vertical ecosystem is watered and fertilized by a conspicuous irrigation system that utilizes electric pumps to deliver water from rooftop rain-collection wells to wall-clinging sprinklers.  A sensor disconnects the irrigation system when it is raining.