A planting machine is suitable for moving forward in a moving direction and planting a plurality of garlic cloves in the soil, and comprises a base device, a power device, a planting device, and a ditching device. The stand device is movable in the moving direction. The power unit provides the power required to move the base unit. The planting device is coupled to the stand device and is capable of moving the garlic cloves to the soil. The trenching device is coupled to the base device and includes a first shaft extending left and right, and a wheel unit that is sleeved on the first shaft. The wheel unit can act on the soil as the base unit moves, and the soil forms a planting trough unit that can accommodate the garlic cloves. The planting groove unit formed by the planting machine can naturally pour the garlic cloves therein, avoiding the tip growth point facing downward, and effectively improving the germination rate.一種種植機,適用於沿一移動方向往前移動並將數蒜瓣種於土壤,並包含一機座裝置、一動力裝置、一種植裝置,以及一開溝裝置。該機座裝置能沿該移動方向移動。該動力裝置能提供該機座裝置移動時所需的動力。該種植裝置連接該機座裝置,並能將該等蒜瓣移至土壤。該開溝裝置連接該機座裝置,並包括一根左右延伸的第一軸桿,以及一個穿套於該第一軸桿上的輪子單元。該輪子單元能於該機座裝置移動時作用於土壤,而使土壤形成一能容納該等蒜瓣的種植溝單元。以該種植機所形成的該種植溝單元能讓蒜瓣自然傾倒於其中,避免尖端生長點朝下,有效提高萌芽率。