The power of baking soda in the garden: 12 clever tricks you must know

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Jan , 19. 12. 2025

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Baking soda isn’t just a great helper in the kitchen or when cleaning the home. Many experienced gardeners know that this common powder also has wide use in the garden. If you’re looking for an eco-friendly, inexpensive and effective solution that will help your garden without chemicals, baking soda is the right choice.

Why does baking soda also work in the garden?

Baking soda (sodium bicarbonate) has an alkaline pH, which allows it to neutralize acidity, suppress certain types of molds and fungal diseases, and help fight pests. Moreover it does not harm the environment and is completely safe when used with care.

12 proven ways to use baking soda in the garden

  1. Against mold on plant leaves: Mix 1 liter of water, 1 teaspoon of baking soda and a drop of liquid soap. Apply the spray early in the morning or evening.
  2. Cleaning garden tools: Make a paste of water and baking soda, apply and scrub with a brush.
  3. Protection against slugs and ants: Sprinkle dry baking soda where they appear.
  4. Improving the taste of tomatoes: Sprinkle a small amount of baking soda near the tomato stem.
  5. Against compost odor: Sprinkle a thin layer of baking soda to neutralize odors.
  6. Cleaning flower pots: Use a mixture of water and baking soda to scrub the containers.
  7. Spray against aphids on roses: Mix water, baking soda and vegetable oil.
  8. Lawn restoration: Gently sprinkle baking soda to improve pH.
  9. Disinfecting gloves and boots: Sprinkle baking soda and let it sit.
  10. Preventing weed growth: Sprinkle into the gaps between paving stones.
  11. Preventing fruit rot: A baking soda spray slows the growth of fungi.
  12. Removing odor from rain barrels: Add 2–3 tablespoons of baking soda to the barrel of water.

Important notice: use in moderation

Baking soda can disrupt soil pH and affect plant growth if overused. Use it locally and test its effect on a small area. Avoid young and sensitive plants.

An eco-friendly garden without chemicals

Baking soda is a great helper for natural cultivation. Combine it with vinegar, wood ash or garlic sprays for an even stronger effect. The result will be a healthy garden without unnecessary chemicals.

Summary: An affordable miracle in your garden

Baking soda is cheap, accessible and eco-friendly. It will help you protect plants, make maintenance easier and contribute to natural cultivation without chemical agents. It’s a simple step toward a better and healthier garden.