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What can you use baking soda for in the garden? Practical uses against weeds, aphids and more.

The use of sodium bicarbonate is documented as far back as antiquity. Other names for soda that appear are sodium bicarbonate, food soda and baking soda. This is a white powder useful in many areas , which should not be missing in any household. In the kitchen, baking soda has been known for centuries and housewives use it for cleaning and cleaning. Today we take a closer look at baking soda and consider its properties as a gardening helper. What can you use baking soda for in the garden? We’ll explain in the following article.

Use sodium bicarbonate for weed control

Fight weeds with baking soda in water

Some plants are undesirable in well-kept gardens, that is why removing weeds is one of the unpopular gardening tasks. The weeds should not spread in the beds, because they rob the other plants of food and light. They are also really annoying when they appear in the joints between paving slabs. You should regularly pluck them here, which is also a tedious job. Here you can quickly resort to baking soda. Based on a solution, you can use baking soda to control weeds. Measure 1 tablespoon of baking soda and bring 1 liter of water to a boil. Then stir baking soda into the boiling water and let cool this solution, which you can use several times against weeds.

Sodium bicarbonate as an option against fungal diseases

Sodium bicarbonate as an option against fungal diseases

Sodium bicarbonate is also a great remedy against possible plant fungi because it contains sodium salt. The sodium salt has a slight alkaline effect when combined with water, which is because the fungi in the garden do not like it.

Here you can again mix water with sodium bicarbonate against fungal diseases. You take 2 teaspoons of sodium bicarbonate to a liter of water, vigorously shake the solution, for example, in a spray bottle of window cleaner, and spray the plants (please, not in full sun!). If necessary, you can repeat it again after 10 days.

Use sodium bicarbonate against powdery mildew

Use soda against mildew

Sodium bicarbonate can also be helpful against powdery mildew in the garden, whether this is true or false mildew. Often you have problems with the fungal disease powdery mildew, because it spreads quickly and spreads to more and more plants. It leaves a white layer on the leaves of the plants. You should react immediately in case and fight powdery mildew as ecologically as possible – a spray solution of 10 grams of sodium bicarbonate and 1 liter of water is enough, so you can spray it on the affected leaves every 10 days.

Garden helper soda against aphids

Garden helper soda against aphids good


The little aphids mean a nightmare in the garden for all amateur gardeners. You have probably had to deal with aphids more than once. The problem is that the little pests can completely destroy plants by sucking out their sap. A spray (dissolve 2 teaspoons of baking soda in 1 liter of water) can serve as a good garden helper in this case. On rainy days, you can add some cooking oil, because it will increase the adhesion.

We also tell you the following information: you can also fight scale and mealybugs in the garden with this spray (but add some spirit!).

Fighting ants with baking soda

Use soda in the garden against ants

In the garden ants are useful animals. However, they often spread in garden areas where people do not want ants . However, it is advisable not to kill the animals. Nevertheless, if you want to reduce their number in the garden, you can use baking soda as a remedy. But you have to mix it with powdered sugar so that it attracts ants.

Increase the pH in the soil

Increase ph-value in soil with soda


As mentioned earlier, baking soda has an alkaline effect when combined with water. Some plants require an alkaline substrate when cultivating: for example, begonias or geraniums. When baking soda meets an acidic soil, it neutralizes starch, which leads to an increase in soil pH.

Test the soil with baking soda

Soil test acid or not

Another way to use baking soda in the garden is to test the pH level. So, if you suspect that the soil in a certain spot is too acidic, you can do a test here. Water the spot, sprinkle baking soda powder on the soil and wait for a short time. If there is no reaction, the soil is not too acidic. But if you observe small bubbles, you can assume that the soil is acidic and the pH is below 5.

Remove lime from flower pots

Old flower pots clean from lime with soda

In the garden, baking soda is a good helper not only for plants and soil, but also for flower pots. In areas with calcareous water, a heavy lime coating forms on the flower pots. The pots can be treated with a scouring paste or scouring milk made of sodium bicarbonate, citric acid and cornstarch. We give you a suggestion: you can first soften the deposits of your garden pots with the help of diluted vinegar. Then, the scouring milk made from baking soda comes in to do the rest.

Baking soda neutralizes odors

Compost odors dispel

If you have a compost in your garden, you know exactly how unpleasant it can smell. Above all, you want to enjoy the scent of your flowers and relax. In this case, you can again use baking soda as a garden helper by your side. You simply sprinkle a bit of it on the compost edge to get rid of the unwanted odors.

Wash hands

Get hands clean with baking soda

When you are done with your gardening, you need to wash your hands. There are several ways to get your hands clean again. Another way to use baking soda powder is the following: Instead of scrubbing your hands vigorously, you can take the powder. You just need to wet your hands, apply baking soda powder, rub it well on your skin and finally rinse it thoroughly with water.

The time for gardening has come again! Try for yourself how useful soda can be in many areas of the garden!

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