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.
Epsom salts are used in the garden as a natural source of magnesium, particularly for roses, tomatoes, and peppers, because these plants seem to benefit from an additional helping of this nutrient. The extra magnesium is believed to make the plants bushier and greener, with more blooms and abundant veggie yields.
Spraying epsom salt on plants boosts magnesium supply to plants and increases yield. Spraying 1 table spoon of epsom salt mix with 4 litre of water twice with 10 days gap could be used for good results. Tomatoes, peppers and rose can benefit extraordinarily
Attach short pieces of hose or plastic tubing to the metal rake, counting the tines so that the hoses are spaced equally. As you drag the rake across the prepared soil, you have an instant planting grid and row markers.