This observatory is part of the Vigie Nature network.

To take part in the Vigie-flore program, participants must first choose an unassigned grid point to be inventoried from a map of grid points. On the map of France, 1 sq km grid points, at 10 km intervals, are shown as green dots (not yet assigned) or red dots (already assigned to an observer). Each grid point contains eight plots, each forming a rectangle of 10 sq meters. Participants must locate as many plots and as accurately as possible and carry out the inventory of flora.

After choosing a grid point and noting its number (xxx-xxx format), participants can then sign up for the Vigie-flore program by providing the grid point number. Participants can choose more than one grid point.

One grid point generally requires at half a days in the field. The time required depends on plot accessibility, species diversity and participants’ botanical knowledge.