Urban horticulture: a case study of a soilless urban garden in Turin (Italy)

Urban horticulture is becoming more important in recent years, not only due to the increase of urbanization but also to the increase in demand for cultural-social activities. The objective of the study was to plan, design and implement an urban garden introducing soilless and vertical systems and recycled material. The soilless urban garden was to be included in a concrete courtyard used by a cultural and social association, located in a post-industrial area in the city of Turin. Three technical solutions have been considered: 1) stacked piled boxes; 2) vertical growing surface; 3) mixed system. Species chosen were: Lactuca sativa L.; Cucurbita moschata Duchesne; Fragaria x ananassa Duchesne ex Rozier; Eruca vesicaria (L.) Cav.; Ocimum basilicum L.; Mentha spicata L.; rosemary (Rosmarinus officinalis L.); Salvia officinalis L.; Origanum vulgare L.; Capsicum annuum L.; Lavandula angustifolia Mill.; Trachelospermum jasminoides (Lindl.) Lem. ( for climbing and covering a grey wall, offering white and scenting flowers). As planned, the fresh produce served the purpose of supplying the restaurant and rewarding the members of the association who actively got involved in maintaining the garden. Educational activities were established with kids of a nearby primary school, transferring the value of knowing and growing herbs and vegetables, and enhancing awareness of environmental issues. The project also allowed the creation of social interaction between the hosts of the recreational association and the neighbourhood. Additional activities were born, such as the creation of a community group-buying. In conclusion, the project was a success allowing the production of fresh produce, ready to be used in the restaurant, but with many social implications too. Ultimately, establishing urban gardens is effective for the regeneration and requalification of degraded urban areas.