Making a Japanese Moss Garden… Propagating Moss Take a clump of healthy moss and crumble it into your blender. Add 2 cups of buttermilk and 2 cups of water Blend at the lowest speed until it is completely mixed and the consistency of a thin milk shake. (add water if necessary) Paint the mixture onto rocks, pots or statuary, or simply pour it on the ground wherever you'd like your moss to grow!
