Homemade Weed Killer: What Works and What to KnowThe claim “the best homemade weed killer with no poison that dries everything in 2 hours” is often exaggerated. Some homemade mixtures can burn the leaves quickly, but many do not kill the roots, so weeds may grow back.
A commonly used non-commercial approach is:
Vinegar-Based Weed Spray
Ingredients
- 1 liter (about 4 cups) white vinegar
- 1 teaspoon dish soap (helps the spray stick to leaves)
How to use
- Mix the ingredients in a spray bottle.
- Apply directly to the leaves of unwanted weeds on a dry, sunny day.
- Avoid spraying desirable plants—the mixture can damage them too.
- Allow time for the plant to die back; tougher weeds may require repeated treatment.
Important cautions
- Household vinegar may only work on small, young weeds. Stronger vinegar products can be more effective but require careful handling.
- Adding salt is sometimes suggested online, but it can damage soil and make areas difficult for future plants to grow.
- Homemade sprays are usually non-selective, meaning they can harm flowers, grass, and vegetables too.
For long-term weed control, combining removal of roots, mulch, and proper garden maintenance is often more effective than a quick spray.
