According to the United Nations Environment Programme, the rise in temperature in urban areas is twice the world average rate due to the effects of heat islands. Faced with these data, in the climate change guide launched at COP 26 , there are detailed guidelines to help cities face global warming. As a response to this climate urgency arises the idea of vertical gardens, that is, gardens on the walls of buildings, with a great capacity to mitigate the effects of temperature rise in heat islands that cities become at canopy height.