Landscape Insight August 2017 | Page 42

INTERNATIONAL ADVENTURES IN VERTICAL FORESTS tree - it was at the centre of everything. We had lots of issues that we had to solve and consider. We undertook a two-year feasibility study and mocked up the design, all the time sharing our concerns with people experienced enough to identify the best solutions. We then had to take into consideration the needs of the client and to make sure we were doing all they asked of us.” Choosing the right plant for the right place was central to the design process. Gatti says: “We were looking for species that had the ability to withstand conditions such as wind pressure on crowns, had a low sensitivity to pests and diseases, plants that would enjoy container cultivation and also required low maintenance. We had to consider using plants that would not be allergenic or poisonous to inhabitants and would have the capability to mitigate air pollution and provide relief from audio pollution too.” One of the questions that has arisen over and over in response to the Bosco Verticale project is: ‘How will you deal with the problem of tree roots and what kind of maintenance will be required on the project going forward?’ Gatti is at pains to underline how important the choice of species is to the success of the design: “If a 42 Landscape Insight | August 2017