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This article was co-written by Lauren Kurtz. Lauren Kurtz is an expert in nature and horticulture. Lauren has worked for Aurora, Cporado, managing the Water-Wise Garden at Aurora City Center for the Department of Water Conservation. She earned her bachelor’s degree in Environmental and Sustainability Studies from Western Michigan University in 2014.
There are 7 references cited in this article that you can see at the bottom of the page.
This article has been viewed 12,679 times.
Vinegar contains acetic acid, a very effective natural herbicide. Many gardeners prefer vinegar, as this method is less toxic than herbicides. You can use a spray bottle to spray the vinegar directly onto the weeds, making sure to avoid the plants you want to keep. For weeds that are difficult to kill, you can buy a stronger garden vinegar, add a little dishwashing liquid or salt to the vinegar before spraying on the grass.
Steps
Use Vinegar as a Herbicide
- The acid in vinegar is the herbicide. White vinegar is most commonly recommended and is probably the cheapest, but you can also use apple cider vinegar.
- Another option is to pour the mixture into a spray bottle. You can buy a spray bottle or use an empty glass cleaner or other mild household cleaner. Be sure to rinse out the spray bottle that previously contained other liquids.
- If you only need to kill a few weeds or use on a small area, you can poke 4-5 holes in the lid of the vinegar bottle and use the vinegar bottle to water the grass.
- If you’re using a horticultural vinegar that’s 30% acidic, dilute the vinegar with water. If you’re using regular white vinegar, there’s no need to dilute it.
- If unfortunately it rains right after spraying vinegar on the grass, you will probably have to spray again.
- In this case, sunshine also means high temperatures, preferably above 21 degrees Celsius.
- You don’t need to water so deeply that the vinegar drips, but you do need to spray an even mulch over the grass.
- Wait about 24 hours and check again. If you are not satisfied, you can spray again.
- Vinegar will not soak into the soil and kill other plants unless it comes into direct contact with the plant.
Kill stubborn weeds
- Regular vinegar also kills most weeds, so use regular vinegar first, and only use garden vinegar if regular vinegar doesn’t work.
- Be careful not to let the vinegar get on your skin, as high concentrations of acetic acid can burn your skin.
- Gently stir the soap into the vinegar but do not shake vigorously; otherwise the soap will foam without mixing with the vinegar.
- You do not need to measure the dishwashing liquid exactly, just pour an approximate amount of 1 teaspoon per liter of vinegar.
- Salt often stays in the soil for a long time and can have long-term effects on plants. If you want to kill weeds on the soil you’re planting, it’s probably best to avoid salt.
- Salt, on the other hand, is helpful if you’re going to kill weeds on an area you want to prevent plants from growing.
- It is very important to clean the sprayer with salt, as salt can clog parts of the sprayer, even corroding it.
Things you need
- Undiluted white vinegar
- Pump sprayer / spray bottle
- Dishwashing liquid (optional)
- Table salt (optional)
This article was co-written by Lauren Kurtz. Lauren Kurtz is an expert in nature and horticulture. Lauren has worked for Aurora, Cporado, managing the Water-Wise Garden at Aurora City Center for the Department of Water Conservation. She earned her bachelor’s degree in Environmental and Sustainability Studies from Western Michigan University in 2014.
There are 7 references cited in this article that you can see at the bottom of the page.
This article has been viewed 12,679 times.
Vinegar contains acetic acid, a very effective natural herbicide. Many gardeners prefer vinegar, as this method is less toxic than herbicides. You can use a spray bottle to spray the vinegar directly onto the weeds, making sure to avoid the plants you want to keep. For weeds that are difficult to kill, you can buy a stronger garden vinegar, add a little dishwashing liquid or salt to the vinegar before spraying on the grass.
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