There are many “homemade weed killer” recipes online claiming to kill weeds in hours, but results vary. A common non-herbicide approach is designed to dry out the leaves, not necessarily kill the roots, so some weeds may grow back.
A simple option for small areas like cracks in driveways or walkways:
Homemade weed-drying spray
- 1 gallon (about 4 liters) white vinegar
- 1 cup table salt
- A small amount of dish soap (about 1–2 tablespoons)
How it works:
- Vinegar’s acetic acid can damage leaf tissue.
- Salt draws water out of plant cells and can make the area less friendly for plant growth.
- Dish soap helps the mixture stick to leaves.
Important cautions:
- Avoid using it on lawns, flower beds, vegetable gardens, or near trees and shrubs—the salt can damage soil and nearby plants.
- Spray on a dry, sunny day for the best effect.
- Keep it away from pets and children until the area has dried.
- Wear gloves and avoid getting it on your skin or in your eyes.
For weeds that return every year (like deep-rooted perennial weeds), removing the roots or using a thick mulch layer is usually more effective than a leaf-burning spray.
