Vinegar: For one batch of weed killer, you’ll need a gallon container of white vinegar.
Dish Soap: Any ordinary dish detergent (not dishwasher detergent or tabs) will do.
Salt: You can use regular table salt, or use Epsom salt. Either one will work!
The ingredients (vinegar, dish soap, salt) for natural weed killer.
How to Make Homemade Weed Killer
You can mix this weed killer directly in the spray bottle you plan to use it in, or just in a large glass or plastic container with a lid.
Dissolve the Salt in the Vinegar. First, pour the salt into your container, and add the vinegar. Shake the salt and vinegar together. It’s best to let this mixture sit for an hour or so, to let the salt completely dissolve.
Add the Dish Soap. Next, add the dish soap. Shake again, gently. Once all the ingredients are combined, you are ready to spray your weeds!
Does Natural Weed Killer Really Work?
It really does! Essentially, this homemade weed killer is excellent at drying up the weeds’ foliage. Both vinegar and salt go to work drying up the moisture in the weeds, while the dish soap acts as a surfactant, preventing the plants’ natural barriers from repelling the weed killer.
For best results, make sure to use this natural weed killer on a sunny day. Sun helps dry out the weeds, while a rainy or damp day would decrease the weed killer’s effectiveness.
After you spray the weeds, it may take up to 24 hours for them to completely die. Bigger weeds may need multiple treatments.
Bonus Tip: Cornmeal Gluten for Weed Prevention!
According to Friendly Organics Canada, there appears to be good evidence showing that cornmeal gluten works well as a weed preventer. So while it won’t kill existing weeds, it may be a great, natural way to prevent weeds from sprouting up, without the threat of toxic chemicals!
