As the world faces a rapidly growing population, food is a major concern that must be addressed [1,2]. Indeed, urban agriculture is one of the ways to address food security in cities, since it refers to food production in urban spaces . This work focuses on urban agriculture and its insertion in the food sector, as well as on the main lines of thought that have been proposed and defended in recent years, considering the effect of the new COVID-19 virus on the implementation of projects, their application and communication to the public . Within the framework of this work, two cases of the implementation of urban agriculture have been analyzed through interviews to main actors involved: Alimenta Concienca in Segovia (Spain) and Green for you in Kharkiv (Ukraine), as well as a survey that was developed and distributed to a worldwide community to get their ideas and opinions on these two concepts. In fact, case studies provide an opportunity to try to highlight the factors that contribute to the effective implementation of urban agriculture - especially with the COVID pandemic and the wartime in Ukraine, where urban food problems increased. The case studies and interviews provide an opportunity to highlight the factors that contribute to the effective implementation of urban agriculture. Also, this paper considers another important aspect for the implementation of urban agriculture - the attitude of the public to the phenomenon of urban agriculture (which includes the level of knowledge, involvement, and interest in urban agriculture). To do this, a pilot survey of different population groups was conducted with an emphasis on young people as the main subject of implementation.