If it begins to bubble, your soil is acidic, meaning its ph is below 5, and will not be able to support healthy plant growth. [substeps] If your soil is acidic, you can raise its ph level by mixing ground or powdered lime into the soil.
[header] How to use baking soda in the garden [title] Test the ph level of your soil. [step] Wet your soil a bit with distilled water. Sprinkle a handful of baking soda over the damp soil.