Do you struggle with weeds, mildew, or green deposits in your garden? Baking soda is an affordable and environmentally friendly alternative to harsh chemicals. Here’s how to effectively use baking soda in your garden—and where to be cautious.

The Versatility of Baking Soda
In the kitchen, baking soda is a staple ingredient, while in the household, it serves as an effective all-round cleaner. In the garden, it can replace harmful herbicides and insecticides. Here’s when baking soda can be beneficial and when you should exercise caution.
Common Garden Challenges
Home gardeners often face issues like mealy rot, gray mold, and persistent weeds. Fortunately, there’s often no need to resort to harmful chemicals; baking soda is a simple and eco-friendly remedy.
Important Safety Note
Do not confuse baking soda (sodium bicarbonate) with caustic soda (sodium carbonate), which is much more aggressive and can cause burns. Never use undiluted caustic soda as a weedkiller in your garden.
Baking Soda as a Multi-Purpose Remedy
Baking soda, or sodium bicarbonate (NaHCO3), is safe for humans but acts as a poison to insects. It can clog the stomata of plants, effectively suffocating them when water evaporates.
Using Baking Soda Against Fungal Diseases
Powdery mildew appears as a white deposit on leaves, while gray mold often affects strawberries, peonies, and many summer flowers.
To use baking soda as a natural fungicide, mix one liter of water with five grams of baking soda. Spray the affected areas multiple times a day. It’s best to remove heavily affected leaves before treatment.
Important: Avoid overdosing, as this can cause burns on leaves. Treat affected plants on a cloudy day to prevent leaf damage from direct sunlight.
Baking Soda for Weeds
Baking soda can also help eliminate unwanted weeds. Boil one tablespoon of baking soda in one liter of water, allow it to cool, and spray it on the weeds.
Important: Keep a distance of at least ten centimeters from desirable plants to protect them.
Removing Green Deposits
You can use baking soda to eliminate algae and moss from your terrace or driveway. However, be aware that using baking soda on sealed surfaces (like paved paths or driveways) is prohibited under the Plant Protection Act, as it can contaminate the water supply.
By using baking soda wisely, you can effectively tackle common gardening issues while keeping your environment safe!


