Polish municipalities have various regulations, requirements and agreements concerning green areas, which encourage companies responsible for their maintenance to favour cities with fewer demands instead of those with higher expectations regarding the quality of work, biodiversity and pro-environmental approaches. In 2021, two Polish cities - Kraków and Wrocław - initiated a project aiming to create standards for urban green area maintenance that could be widely implemented in Polish cities. The Sendzimir Foundation, the project implementer, invited 35 cities to the co-creation process and a broad group of scientists to guarantee both practical and scientific approaches. When successfully introduced, the standards (Standardy utrzymania terenów zieleni w miastach) are expected to lead to better conditions and maintenance of green spaces, including nature-based solutions, on a national scale.