Does Bicarbonate Of Soda Kill Moss? Find Out Here!



Moss is a common problem that people face in their gardens or backyards. It can grow on almost any surface, including walls, roofs, and paths. Moss not only looks unsightly but also can be dangerous as it makes surfaces slippery, increasing the risk of falls. There are many products available that claim to kill moss, but one of the most popular and inexpensive options is bicarbonate of soda. In this article, we will explore whether bicarbonate of soda is effective in killing moss.

What is Bicarbonate of Soda?

Bicarbonate of soda, also known as baking soda, is a white crystalline powder that is commonly used in cooking and cleaning. It is a natural and safe product that is non-toxic, making it an environmentally friendly option for killing moss.

How Does Bicarbonate of Soda Kill Moss?

Bicarbonate of soda works by increasing the pH level of the soil or surface on which the moss is growing. Moss thrives in acidic conditions, and by making the area more alkaline, bicarbonate of soda can kill the moss. When the pH level becomes too high, it can damage the moss’s cell walls, causing it to dry out and die.

How to Use Bicarbonate of Soda to Kill Moss

To use bicarbonate of soda to kill moss, you will need to mix it with water to create a solution. The ratio of bicarbonate of soda to water will depend on the severity of the moss problem. For a light infestation, you can use a weaker solution, while a stronger solution will be needed for a more severe problem. Once you have created the solution, you can apply it to the affected area using a spray bottle or brush. Make sure to cover the moss completely, and leave the solution to soak in for a few hours or overnight. After this time, you can rinse the area with water to remove any dead moss.

Does Bicarbonate of Soda Really Work?

While bicarbonate of soda can be effective in killing moss, it may not be the best option for everyone. It can take several applications to see results, and it may not work as well on stubborn moss. Additionally, it may not be suitable for use on certain surfaces, such as those made of limestone or marble.

Other Methods of Killing Moss

If bicarbonate of soda doesn’t work for you, there are other methods you can try. One option is to use a moss killer product that contains chemicals specifically designed to kill moss. Another option is to physically remove the moss by scraping or brushing it off the surface.


In conclusion, bicarbonate of soda can be an effective and environmentally friendly option for killing moss. However, it may not work for everyone, and there are other methods available if it doesn’t work for you. If you do decide to use bicarbonate of soda, make sure to follow the instructions carefully and consider any potential risks to your surfaces.