Horticultural Building Systems are defined as the instance where vegetation and an architectural/architectonic system exist in a mutually defined and intentionally designed relationship that supports plant growth and an architectonic concept. The most common form of these systems in contemporary vernacular is green wall, vertical garden, green roof

Green roof

A green roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane. It may also include additional layers such as a root barrier and drainage and irrigation systems...

, roof garden

Roof garden

A roof garden is any garden on the roof of a building. Besides the decorative benefit, roof plantings may provide food, temperature control, hydrological benefits, architectural enhancement, habitats or corridors for wildlife, and recreational opportunities....

, building-integrated agriculture (BIA), yet the history of these systems may be traced back through greenhouse technology, hydroponicum

Hydroponicum

A Hydroponicum is a farm, garden, or building devoted to soiless cultivation or hydroponics....

s, horticultural growth chambers, and beyond. These horticultural building systems evolved form a reciprocal relationship between plant cultural requirements and architectural technology.