The practice of urban agriculture is increasingly popular among people who want to take center stage in the production of home-grown vegetables. Although urban gardens can be installed directly on the surface of the rooftop, they are usually installed in raised or ground-level tables. These tables contain the growing substrate and help make urban gardening easier.
Urban gardens contribute to the sustainability of cities, and can include organic farming practices if no fertilizers or chemicals are used. The practice is educational and rewarding, and strengthens the social fabric. Production is not large scale but can be cultivated with numerous types of vegetables throughout the year.
Urban gardens can belong to the community if planted in spaces managed by the City of Barcelona and cared for by participating citizens. Eixverd suggests semi-communal and private gardens. Semi-communal gardens can be installed on the roof of a residential building where access is shared by and limited to building residents. Urban gardens can also be constructed for personal use if the terrace or balcony is private.
Urban gardens are also related to the movement of food sovereignty, where small-scale producers provide consumers with nutritious, organic, 0 km food that offers a low-cost alternative to industrial agriculture and the associated problems of price wars, imported vegetables, and growing vegetables out of season.