Does Baking Soda Kill Grass And Weeds?

Baking Soda as Weed killer Powerful Natural Weed Killer Baking Soda


If you are an avid gardener or someone who takes pride in maintaining a lush lawn, you know how frustrating it can be to deal with weeds and unwanted grass. While there are several chemical-based herbicides available in the market, they can be expensive and harmful to the environment. Baking soda, on the other hand, is a natural and cost-effective alternative that many people swear by. But does baking soda really kill grass and weeds? Let’s find out.

What is Baking Soda?

Baking soda, also known as sodium bicarbonate, is a white crystalline powder that is commonly used as a leavening agent in baking. It has a pH of 8.3, which makes it slightly alkaline. Baking soda is also used for various household cleaning purposes, as it is abrasive and can help remove stains and odors.

How Does Baking Soda Kill Grass and Weeds?

Baking soda is a desiccant, which means that it absorbs moisture from its surroundings. When applied to grass and weeds, baking soda can absorb the moisture from the leaves and cause them to dry out. This, in turn, can lead to the death of the plant.

How to Use Baking Soda to Kill Grass and Weeds

To use baking soda as an herbicide, you will need to mix it with water and dish soap. The dish soap helps the baking soda stick to the leaves of the plant. Here’s how you can make a baking soda herbicide: 1. Mix 1 cup of baking soda with 1 gallon of water. 2. Add 1 tablespoon of dish soap and mix well. 3. Pour the mixture into a spray bottle. 4. Spray the mixture onto the leaves of the grass or weed that you want to kill.


While baking soda is generally considered safe for use in the garden, there are a few precautions you should take: 1. Do not use baking soda on plants that you want to keep. 2. Avoid spraying the mixture on a windy day, as it can drift onto other plants and damage them. 3. Do not use baking soda on plants that are stressed or wilted, as they may be more susceptible to damage. 4. Test the mixture on a small area before applying it to the entire plant.


In conclusion, baking soda can be an effective herbicide for killing grass and weeds. However, it may take a few applications to completely kill the plant. Additionally, it is important to take precautions and use the mixture only on plants that you want to get rid of. With the right application, baking soda can be a natural and safe alternative to chemical-based herbicides.