The IFLA World Congress is coming to Nantes, France, from 10–12 September 2025, bringing together leading voices in landscape architecture.

With more than a thousand participants expected (professionals, researchers, businesses, etc.), this event will be a unique moment of sharing and networking. 

Recognized as the largest annual event for the profession, this Congress will bring together landscape designers from around the world around inspiring conferences, professional visits and festive moments … Three days of Congress where the Nantes region and France will be in the spotlight.

This edition will be on the theme of Guiding Landscapes, a way to delve into the work of French and international landscape designers!

Keynote lineup features renowned landscape architects, scientists, and thinkers from around the world — from pioneers in urban ecology and public space design to experts in biodiversity, climate, and social transformation: Jacqueline Osty, Alexandre Chemetoff, Bertrand Folléa, Miguel Georgieff, Marc-André Sélosse, Véronique Mure, Jean Viard, Antoine Picon, Charles Waldheim, Cecil Konijnendijk, Rainer Stange, Dirk Sijmons, Kongjian Yu, Pepa Morán Núñez, Virginie Vial, Sylvanie Gree, Mechtild Rössler.

Guiding Landscapes

Landscape architects play a key role in adapting cities to climate change at a variety of scales. Planning, conceiving, and managing new resilient urban districts, reorganizing the public realm by reopening soils, increasing rainwater infiltration, and developing urban biodiversity to cool cities are all essential challenges.

Understanding soil and its conditions is the first step in assessing a location’s potential for ecological and sustainable projects. This will be one of the key aspects we explore during our visits to Nantes.

Nantes has undergone significant urban transformations that have gained international recognition. One notable example is the “Plan Guide” for Ile de Nantes, an experimental landscape urbanism project that initiated discussions about the role of our profession in urban planning.

Numerous landscape architects have worked in France and in the Nantes region and are excited to share their experiences with you.