GreenDense aims to bring more green infrastructure into dense urban environments, helping cities become greener, more climate-resilient, and healthier places to live. The project’s knowledge partners play a key role in supporting GreenDense partner cities to design and implement innovative greening solutions. However, their impact extends beyond the project itself, helping to disseminate insights and lessons learned from GreenDense to wider professional audiences.
The recent Paysalia trade show provided an excellent opportunity for GreenDense knowledge partner Plante & Cité to do just that, and to also acquire new knowledge and insights to feed back into the GreenDense project and its partner cities. Below, the Plante & Cité team share their reflections on the event.
From 2 to 4 December 2025, GreenDense knowledge partner Plante & Cité took part in the Paysalia trade show, a major European event for professionals from the horticultural and landscape sectors. With several thousand visitors expected, Paysalia offered an excellent opportunity to engage with a wide audience of practitioners, local authorities, and experts working on the future of nature in cities.
Over the three days, the association presented its ongoing initiatives related to nature in cities. Several talks were delivered on topics including green walls, soil desealing, and the management of plant pests, reflecting current technical and ecological challenges faced by urban green space professionals.
The topic of greening dense urban areas was explored from multiple angles. A range of technical publications was shared, including a recent release focusing on the coexistence of tree roots and underground networks—a crucial issue for ensuring the long-term resilience of vegetation in constrained and highly mineralised urban environments.
The operational objectives and initiatives implemented within the GreenDense programme were also presented to participants interested in effective and replicable actions for dense cities. In this context, questions raised by local authorities and landscape professionals highlighted the growing need for the technical guidance and knowledge-sharing provided by the GreenDense project, which supports partner cities in designing and implementing climate-adaptive greening solutions.
The next edition of Paysalia will take place in 2027, offering another opportunity to highlight progress made within the GreenDense programme and to present updated methods and actions supporting vegetation and urban renaturation in dense urban environments.
Article written by Robin Dagois – Plante & Cité