I don't even use regular dish soap in my home anymore (I use Dr. Bronners liquid castile soap instead.). However, after much research, and despite the fact that there are some concerns regarding the environment, I still think using the dish soap is the lesser of two evils when compared to the commercial brand weed killers. I would choose to have a tablespoon of Dawn dish soap infiltrate into my groundwater rather than RoundUp’s potentially carcinogenic ingredients.
I have modified the recipe to work with a smaller 1-liter pump sprayer as making a gallon or more of the product seemed wasteful (I do not see myself using it that much plus the large sprayers are expensive and need to be stored somewhere.). Instead I purchased a 1-liter pump garden sprayer (50% off) at RiteAid for $3.99 plus tax. Also, after much research regarding the ingredients and their purposes, I have determined that this homemade weed killer should only be used on weeds in the patio or driveway or anywhere far away from plants and soil I do not want to harm. In my gardens I will continue to maintain the weeds by pulling them by hand or raking.
I added the ingredients to a 1-liter pump sprayer and let it sit until the next morning. Before work I sprayed the weeds on a small patio made of rubber tiles (made from recycled tires!). I returned home 8 hours later and the weeds were DEAD! Using just a strong bristle brush/broom I was able to sweep the weed away! The weed killer was a success and definitely saved me MONEY and I still have plenty of the soap left for future batches of weed killer ☺
A couple of last minute pointers:
Hi there! I'm Kathie, the author behind Creating A Simpler Life. I'm excited to share our longterm projects (and planning) toward building our future retirement homestead in the Adirondack Mountains of New York. In the meantime I will be sharing all the other little things we do that are part of creating our simpler life!