The project fosters transformation of cities to sustainable, resilient spaces by re-thinking, redesigning and re-managing vertical greening as progressive food-water-energy nexuses. Verical greening is interpreted and designed as a biological-technical system in an architectural context with a substantial capacity to implement ecosystem services like passive cooling, flood alleviation, bioenergy and possibly food production, biodiversity, noise reduction and could be consistently installed as a part of built environment especially in dense city districts. In order to unfold the full potential of VG, three focal governance and management aspects will be approached for the mid-latitude partner cities (Berlin, Vienna and Ljubljana) in alliance with stakeholders: 1) integration of vertical green at building and district scales with habitat, water, heat and energy management, 2) technological innovation for maintenance and automated harvesting machinery and 3) adaptation of design strategies and governance for a secure, city-integrated cultivation and operation. Using a trans-disciplinary, stakeholder-oriented co-creation approach, we intend to re-think traditional urban greening and will combine innovations and fundamental research from urban planning and design, ecohydrology, mechanical engineering, water engineering and economy to enable decision-making using a nexus approach considering both co-benefits and trade-offs of nature-based solutions for the cities of the future.