Located at the interface between the city center and the northern districts of Marseille, Cap Pinede Avenue and Capitaine Gèze Boulevard connect the A55 and A7 highways, as well as a multimodal hub (PEM), which opened in 2019. On its outskirts, the public space comes up against an uncrossable cut, and is fragmented into a multitude of undefined residual places, hardly appropriable. In 2021, the dismantlement of a motorway footbridge marked the launch of a vast requalification project now led by the MDP agency. This project creates a large boulevard of approximately 45 meters wide, i. e. one of the widest in Marseille. The supremacy given to road traffic until now is now reversed. The plantings are inserting between the different traffic lanes to separate them, significantly reduce the impact of traffic, and organize crossings. The typical section of the boulevard will integrate five vegetation ditches planted with large trees, which will make it possible to manage rainwater. The typology of the boulevard's planted valleys is replaced by that of a wide planted mall spreading over the mineral ground of the new public Gèze square. A tree layer joins the Gèze square to the forecourt. The random plantings create "clearing" that can accommodate different uses. The proposed plant palette is made up of native species or species adapted to the urban conditions of the Mediterranean zone. In order to ensure the quality and supply of all the plants, the project provides for the establishment of a cultivation contract.