Stefano Boeri Architetti’s two "vertical forest" towers began to grow in Milan last year, and now a sister project is to be built in Lausanne, Switzerland.
The Tower of Cedars will house 24,000 plants on 3,000 square metres, including 100 cedar trees, 18,000 perennial plants and 6,000 shrubs.
Stefano Boeri said: "The Tower of Cedars, thanks to its shapes and colour changing during the seasons, will become a landmark in the landscape of Lake Geneva."
As well as their visual impact, the Milanese architect says the plants improve the environment inside the building by reducing noise and air pollution and helping to regulate its temperature.
The 36-storey tower will measure 117m, taller than the Bosco Verticale towers in Milan, which were 110m and 76m high.
The building will contain private residencies, along with offices, a gym and a rooftop restaurant.
He also says that with the $4m it cost to add the 2.5 acres of plantlife to Milan’s vertical forest, the architect could have restored more than 2,000 acres of horizontal forest.
The Tower of Cedars will be built in 2017.
Images of Milan’s vertical forest towers courtesy of Stefano Boeri Architetti