The present invention refers to a cutting blade (10 110 210 310 410) for grafting plants, made up of plate provided with a first cutting edge (16), a second edge (18) opposite said first edge (16), a first lateral edge (20) opposite a second lateral edge (22), in which said plate comprises at least one flat portion (12 112 212) that lies on a first plane (30) having a first face (32) opposite a second face (33), and a contoured portion (14) that extends on a plane different from said first plane (30).The contoured portion (14) comprises a plurality of tracts (14A, 14B) that protrude from the first plane (30) to form a plurality of inlets (24, 26, 28).The invention also refers to a grafting device, to a method for performing grafts on plants, and to a plant.
