Two green twin towers were built in the center of Milan. They were designed by the Italian architect Stefano Boeri and his partners from the architectural firm Boeri Studio. The construction of the buildings began in 2008 and ended in 2014. Their height is 110 and 80 meters.
900 trees and over 20,000 plants have been planted in the twin towers. This is equivalent to a forest of 7,000 square meters. Vertical forest helps to improve the microclimate in apartments and balconies. Plants emit moisture, oxygen, and absorb carbon dioxide, dust particles.
In order for the trees to take root, they had enough sunlight, did not interfere with the wind at such a height, they needed the knowledge of botanists. It was necessary to find suitable tree species for different heights. As a result, 20 different types of deciduous and coniferous trees grow on the balconies.
Trees are watered using a hose system of the “drip irrigation” type. However, trees require care and pruning. With this, things are more complicated. But nothing, a new profession has appeared – “flying gardeners” or climbing gardeners.