Abstract:In recent years, urban agriculture has been asserting its relevance as part of a vibrant and diverse food system due to its small scale, its focus on nutrition, its contribution to food security, its employment opportunities, and its role in community building and social mobility. Urban agriculture may also be a tool to re-appropriate a range of abandoned or unused irregular spaces within the city, including flowerbeds, roundabouts, terraces, balconies and rooftops. Consistently, all spaces that present a lack of identity may be converted to urban agriculture areas and, more specifically, to urban horticulture as a way to strengthen resilience and sustainability. The goal of this paper is to analyse current practices in the requalification of vacant areas as urban gardens with the aim of building communities and improving landscapes and life quality. To do so, the city of Bologna (Italy) was used as a case study. Four types of vacant areas were identified as places for implementing urban gardens: flowerbeds along streets and squares, balconies and rooftops, abandoned buildings and abandoned neighbourhoods. Six case studies representing this variety of vacant areas were identified and evaluated by collecting primary data (i.e., field work, participant observations and interviews) and performing a SWOT analysis. For most cases, urban horticulture improved the image and quality of the areas as well as bringing numerous social benefits in terms of life quality, food access and social interaction among participants. Strong differences in some aspects were found between top-down and bottom-up initiatives, being the later preferable for the engagement of citizens. Policy-making might focus on participatory and transparent planning, long-term actions, food safety and economic development.

The RESearch Centre on Urban Environment for Agriculture and Biodiversity (RESCUE-AB), within the Department of Agricultural and Food Sciences of the University of Bologna, is committed to promote urban horticulture and biodiversity in Europe and in several countries of the Global South, bringing together skills and research expertise in the fields of horticulture, environmental sciences and entomology. Educational activities build upon a range of international projects, specifically devoted to create innovative training tools. These range from adult education for urban gardeners and school educators, to higher education curricula. Lifelong learning instruments addressing the social and environmental functions of urban horticulture have been developed within the framework of LLP-Grundtvig projects, such as the project "HORTIS" (Horticulture in Towns for Social Inclusion and Socialisation, www.hortis-europe.net). Successful application of the developed educational models are already being explored within social projects, such as the Urban Innovative Action "SALUS W SPACE" (Villa SALUS as a new Sustainable Accessible Livable Usable Social space for intercultural Wellbeing, Welfare and Welcoming in the Metropolitan City of Bologna), in which urban agriculture becomes a tool for social inclusion and capacity building among communities of political refugees and immigrants. Specific training on how to design and implement educational gardens in schools is then the main objective of the ongoing project "GARDENS TO GROW" (Urban Horticulture for Innovative and Inclusive Early Childhood Education), funded by Erasmus+. The same funding scheme promoted between 2014 and 2017 the project "URBAN GREEN TRAIN" (URBAN GReen Education for ENTteRprising Agricultural Innovation), with the aim of encouraging the creation of pioneering business initiatives in Urban Agriculture (UA), by reinforcing the so called knowledge triangle among Education, Research and Business. Within the project a partnership of public and private organizations from Italy, France, Germany and The Netherlands, developed, tested and made available to different types of learners a pilot international, crosssectoral, multi-targeted training path on Urban Agriculture Entrepreneurship. Similarly, the ongoing project Erasmus+ "BUGI" (Western Balkans Urban Agriculture Initiative) brings together the most innovative business models in urban agriculture in Europe and support their adaptation and diffusion in Eastern Europe and the Balkan context. Finally, the capacity-building of early-stage researchers was addressed in the project H2020 MSCA "SUSTURBANFOODS" (Integrated sustainability assessment of social and technological innovations towards urban food systems), where innovative research on comparative sustainability assessment of different urban horticulture models across Europe was set in place.

Urban gardens are spreading in many cities across Europe, with community gardening being a fundamental form of urban agriculture. While the literature reveals the essential role that community gardens can play in terms of learning and education, no studies have investigated the training needs for participants in community gardens to ensure their successful development. The goal of this article is to evaluate the training requirements of urban community gardens to ensure their successful implementation and their contribution to sustainability in European cities. Two questionnaires of users’ needs analysis were designed and implemented in Berlin, Bologna, Budapest, and Cartagena. The results unveiled the need to re-enforce the training in the formation and community building phases of community gardens towards ensuring the creation of an engaged gardening community to maintain activity, particularly for top-down activities (e.g., research-related gardens). Users claimed their need for being trained on crop management skills (e.g., maintenance, bed preparation, organic practices) and on communication skills to further disseminate their activity, thereby increasing the potential for citizen engagement. Such requirements could be overcome with the creation of urban gardens networks, where experiences and knowledge are shared among practitioners. Policy recommendations are provided based on the outputs of this study.

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