PROBLEM TO BE SOLVED: To provide a greening method for stabilizing a slope or a steep slope or matching the greening ground to the ambient environment and free from the problems of the considerable period necessary for the germination and proliferation of seeds or the failure in getting three-dimensional greening in the case of using moss or sedum which are unavoidable problems in conventional greening methods to mix soil with a vegetable greening material such as seeds, moss and sedum together with a fertilizer and a water-retaining material and spray the mixture to the greening slope. SOLUTION: The greening method comprises the cutting of the twig of a vegetable growable from cuttings, mixing of the sprouted and rooted twig 3 into a vegetation base 2 at a proper mixing ratio and spraying the obtained mixed vegetation base 2 of the twig 3 against the treating surface 1 to be greened. The method easily achieves three-dimensional greening in extremely good state. COPYRIGHT: (C)2004,JPO