Does Baking Soda Kill Weeds?
Baking soda can be an effective DIY weed killer, especially for small weeds in specific areas. It’s easy to use and works by drying out the plant, but it needs to be applied with caution.
What Baking Soda Can Do:
- Kill small weeds by dehydrating them
- Help reduce powdery mildew on plants
- Work well on weeds growing between pavers, along sidewalks, or driveways
What It Can’t Do:
- Target only weeds—it will also harm nearby plants and grass
- Stay effective in wet conditions—rain or watering can wash it away
- Treat large weeds or lawn areas safely
How to Use It:
There are two easy ways to use baking soda as a weed killer—sprinkling it directly on the plant or spraying a baking soda solution. Choose the method that best fits your space and the severity of the weed growth.
- Sprinkle Method: Wet the weed leaves, then sprinkle about a teaspoon of baking soda directly on each plant. This works best on dry, sunny days when the powder can stay in place.
- Spray Method: Mix 10 tablespoons of baking soda with 1 gallon of water. Pour the solution into a spray bottle and spray weeds directly. This method is better for controlling application and avoiding wind-blown powder.
Other Natural Weed Killers:
If baking soda isn’t enough, try other methods like salt, vinegar with high acetic acid, boiling water, smothering with tarps, or simply pulling weeds by hand.
Baking soda works well for spot treatments in cracks or paved areas, but it’s not ideal for lawns or garden beds. Use it sparingly and avoid applying near desirable plants. For widespread issues, consider stronger natural or commercial solutions.