Metal plays a significant role in the architectural style of the modern age. This applies not only to structural load-bearing elements like supports, beams etc.., but also to arbours, pergolas, staircases, and entire facades made of wire rope or grid constructions. It makes sense to use these metal components also as high climbing walls for plants; such constructions are sometimes even planned as additional wall faces only for greening! Here we cover its history and provide some examples. You can find similar photo examples under balconies, car parking lots/garages, and high greening.
For centuries high trellis constructions have been used in farming to cultivate beer hops. Perhaps this gave rise to the idea of installing such climbing walls as a component part of architecture. The 'MFO-Park' in Örlikon / Switzerland was the impetus for such projects: after the demolition of an old machine factory, there was a plan to transform the area into a recreational park. The contours of the old factory buildings were imitated by structural steel and planted with vigorous climbing shrubs. The plants were meant to take over the metal lattices and transform the empty, airy zones into a green jungle. The project receives attention to this day and has served as a model for many architects.
With large metal structures already in place, it will be easy to create green walls using simple metal nets or cable systems with parts available from FassadenGrün. Very high climbing walls work best in (wind-protected) inner courtyards, because there the plants thrive better and are sheltered. Location plays a big role. For the climbing structure, it is advisable to include the structural engineer at an early stage in the planning. In turn, the big manufacturers of metal lattices or the wire-cable factories (see suppliers) can recommend modules that may reduce costs. If plants are put in pots/containers, one must be even more careful in planning to ensure automatic fertilisation, irrigation, etc..