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Homemade Weed Killer

Growing a gorgeous lawn and garden free from weeds is possible with this easy homemade weed killer.

Weeds love my yard and garden, and pulling them seemed like a full-time job. Therefore I decided to try my neighbor’s DIY weed killer recipe.

Weed killer ingredients sitting on a table outside


How to Make Homemade Weed Killer

This post contains affiliate links. In other words, if you purchase from one of these links, I will make a small commission, but rest assured, you will not pay more for any products.  

Easy weed control is the key to enjoying my yard, flower garden, and raised bed garden.

Weed Killer Supplies

  • White Vinegar (distilled)
  • Dawn dishwashing liquid
  • Epson salt
  • Garden sprayer


🌸 I recommend you watch this video of me making homemade weed killer.

This recipe uses the acid in the vinegar to wilt and ultimately kill weeds. It is not harmful to the environment like store-bought weed killers.

1. Measure Weed Killer Ingredients 

You can use a clean bucket or garden sprayer to mix your solution. 

I purchased a new garden sprayer and labeled it so that I would not mistakenly use it for fertilizing my plants.

Adding epsom salt to the garden sprayer on a table outside

Add Epsom salt

First, I added two cups of plain Epsom salt to the garden sprayer.

Adding the dishwashing liquid to the garden sprayer

Add dish soap

Then I added 1/4 cup of Dawn dishwashing liquid (the blue one) into the sprayer.

Pouring vinegar into the garden sprayer on a table outside

Adding vinegar

Next, I added the white vinegar to the fill line on the sprayer. 

Note: If you use a one-gallon sprayer, you cannot add the entire gallon of vinegar. However, you can add the remaining vinegar after using some weed solutions. 


2. Mix Weed Killer Solution

Since I used a new sprayer, I had to insert the sprayer nozzle tube and screw it in place.

Inserting the sprayer tube on the garden sprayer

Insert tubing

Next, I inserted the pumper handle and tightened it in place.

Inserting the garden sprayer plunger

Insert plunger


3. Apply Weed Killer

Before applying the solution, I had to use the handle to pump air into the sprayer to create pressure. 

Note: You will need to repeat this process when the sprayer loses pressure. 

Next, apply the week killer directly to the weed you want to eliminate, then check back in 24 hours to see the results.

This solution will wilt the green growth, but it does not kill the root system. Therefore, you may need to reapply if more growth reappears. 

Note: For the best results use this solution on a sunny day.


spraying weeds with weed killer

spray weeds

You see the results 24 hours after applying the weed killer.

Weeds turning brown in the garden

Wilting weeds

The results after 24 hours. 

Natural Weed Killer 

Another way to kill weeds is to pour boiling water over them. However, this method is very time-consuming. 

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See you soon, 


Ps. This post is featured on Between Naps on The Porch


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Angel Garrison

Monday 26th of September 2022

I am grateful that you have shared this and demonstrated how simple it is to make. There are a lot of weeds growing around here at Farmhouse1820. I have used this for years, but you absolutely must avoid getting it on any metal surfaces, including metal outdoor furniture, metal fences, or metal mail box posts blockpost


Friday 27th of May 2022

I have been using this for years, BUT you better not get it on metal fence, mail box post or metal outdoor furniture. It will eat a hole in it the first time.

Brittis Maria

Saturday 14th of May 2022

This is very handy to have. I’m always worried about using weed killer:

Brooke Fedigan

Monday 9th of May 2022

Thank you for sharing this and showing how easy it is to make. Sure do have a lot of weeds here at Farmhouse1820.


Monday 9th of May 2022

Great idea - will definitely try this out now that the weather is better!

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