Baking soda neutralizes the ph in the soil and nothing will grow there. use baking soda around all of the edges of flower beds to keep the grass and weeds from growing into beds. Just sprinkle it onto the soil so that it covers it lightly. Do this twice a year - spring and fall.
Grow 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!