Finland | The Jagiellonian University in Poland has published new research showing how mowing frequency strongly influences biodiversity, soil health, and user comfort in urban green spaces.A three-year interdisciplinary study titled “To Mow or Not to Mow?” was conducted at the university’s 600th Anniversary Campus Living Lab. Researchers tested 72 experimental lawn plots with different mowing regimes to observe how urban grasslands change under real-world conditions.The results show that mowing no more frequently than once a month is generally beneficial for biodiversity. Even better outcomes were observed when mowing was done in a mosaic pattern, leaving some areas untouched to support a wider range of plant and insect species. However, researchers also warn that completely stopping mowing can increase the spread of invasive species and reduce ecosystem balance.The study found that frequent mowing reduces soil quality and increases surface temperature, while biodiversity tends to improve with less intensive maintenance. Interestingly, tick presence was found to be similar in both frequently and rarely mowed areas.The project combined ecological experiments with social research, involving public authorities, private companies, NGOs, and residents. Findings were translated into a public educational tool—an interactive web application titled “To Mow or Not to Mow?”—which helps guide sustainable green space management decisions.
Source: Jagiellonian University
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