A method and an apparatus for scarification of soil and planting of tree seedlings, and a soil scarification and planting machine for planting of tree seedlings. The apparatus for the scarification of soil and planting of tree seedlings comprises a frame structure (10, 11, 12) and a combined scarification and planting head (101 ), which is movable by means of the frame structure for forming a planting spot in the ground and for planting a tree seedling into the formed planting spot, and a first end of the frame structure (11 ) is connected to the scarification and planting head and a second end (12) is attachable to the work machine (1), and the apparatus comprises: at least one scarification and planting head (101) mounted on the frame structure (10, 11, 12) and control means of the horizontal position (102, 103), which are configured, during the substantially continuous movement of the work machine (1) along the ground: to regulate the distance of the scarification and planting head from the work machine and to hold the scarification and planting head substantially horizontally in place relative to the ground during planting.
