There is growing interest in collaborative actions in the field of biological invasion control. These actions now cover a wide range of situations, and it is important to better understand them in order to promote their development. This article proposes to reflect on this question based on the case of aquatic invasive plants through a study of projects involving the recreational users of lakes located along France’s southwestern coastline. Drawing on analytical tools from service economics, I approached these organisations as coproduction processes. A mixed methods analysis showed that the organisations involving recreational users valorised the users’ operational and relational competences but not their creative or expert competences. These organisations were conditioned as much by the settings in which the plants developed as by the plants themselves. In this context, the recreational users’ involvement added a place-specific dimension to the management of the action, with flexible boundaries. However, this process was also accompanied by a tendency towards the micro-localisation of tasks as well as a certain specialisation in terms of responsibilities, neither of which were very compatible with the spatial dynamics of the plants. Only the professional technicians and managers seemed able to overcome these obstacles. This study hopes to fill a gap in the economic literature on biological invasions and to offer a complementary approach to the traditional public intervention strategies.