Green facades, or just adding some greenery to city buildings, help purify the air and make the cityscape that much more beautiful. Adding living greenery to our urban buildings in the form of vertical gardens not only helps to make cities more beautiful, but also serves the practical purpose of producing extra oxygen and cleaning the air. One great example of such a vertical forest is the Santalaia building in Bogotá, Colombia, which is also the world’s tallest vertical garden.
The Santalaia is a residential building which rises 9 stories high (with 2 stories below ground) and covers 33,550 square feet (3,117 square meters). It is the brainchild of biologist and botanist Ignacio Solano of Paisajismo Urbano, who worked with green roof design firm Groncol to create this gem. The garden consists of more than 115,000 plants, which are of 10 different species, including Hebe Mini, rosemary, asparagus fern, vincas and spathiphyllum that come from Colombia’s western coast. These plants cover practically the entire exterior of the building.
The plants are irrigated with the help of the so-called “F+P” hydroponic system, which is patented by Paisajismo Urbano. It is made up of pillars, that each supports a segment of greenery. These are irrigated by 42 irrigation stations to keep the plants growing. The water used comes from the residents’ bathrooms. The irrigation system is also fitted with humidity and radiation sensors that help in optimizing water consumption.
They estimate that the vertical forest produces oxygen for 3000 people, while helping to offset the carbon footprint of about 700 people. It also helps to filter out the emissions of 745 cars. Because of this, they are calling the tower a “living building” and it is quite fitting. It also brings some much needed nature into the densely populated city, and more cities around the globe should consider the addition of such vertical gardens to their skyline.
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