Will Baking Soda Actually Kill Weeds In Your Veggie Garden? - Tasting Table
Briefly

Baking soda is increasingly used as an environmentally friendly alternative in homes. It is a reliable, non-toxic cleaning solution for kitchens and serves as an inexpensive herbicide for gardens, effectively killing weeds through dehydration. Sodium bicarbonate functions by applying directly to foliage or using a diluted solution in a spray bottle. While it may not kill weed roots, it helps keep them at bay, and reapplication is necessary every 7-10 days during peak growing seasons. It is critical to ensure baking soda adheres to wet leaves for effective use.
Baking soda, or sodium bicarbonate, serves as a non-toxic cleaning solution and an effective herbicide for gardens by dehydrating plants when applied directly to foliage.
To apply baking soda for weed control, wet the leaves of the weeds first, then sprinkle about a teaspoon directly or use a solution of 10 tablespoons in a gallon of water.
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