How to Use Citric Acid to Kill Weeds


Ridding your garden or lawn of weeds requires either hand-pulling each weed or spraying the plant with an organic or synthetic herbicide. Homeowners who want to maintain an organic yard and garden will opt for hand weeding or weed-killing solutions that are derived from natural substances. One natural product that is proven to kill weeds, as well as other plants, is citric acid, the acid found in citrus fruit. Citric acid appears as an ingredient in some commercial organic herbicides. You can also make your own herbicidal citric acid solution with lemon juice.

Things You'll Need

  • 2-quart spray bottle
  • 4 ounces lemon juice concentrate
  • 1 quart white or cider vinegar
  • Commercial organic herbicide with citric acid

Make a homemade weed killer

  • Pour 4 ounces of lemon juice concentrate and 1 quart of white or cider vinegar in a 2-quart spray bottle. Put the sprayer cap on the bottle and shake it to mix the two liquids.

  • Spray the solution directly on the leaves and flowers of weeds on a sunny day when the temperature is above 70 degrees. Apply the weed killer on a day with little wind so that desirable plants are not affected.

  • Monitor the plants for the next week to determine if the solution is killing the weeds. If the weeds are still alive after one week, apply the solution again.

Buy a commercial organic herbicide

  • Purchase a commercial weed killer with citric acid listed as a hazardous ingredient. Two brands that use citric acid to kill weeds are AllDown and BurnOut. Each of these weed killers is available in a concentrate and a ready-to-use formula.

  • Follow the manufacturer's directions on the product's label to mix and apply the weed killer. Combine the concentrated formula with the correct amount of water in a spray bottle or pump sprayer. The ready-to-use formula comes already mixed in a spray bottle or large spray jug.

  • Spray the citric acid commercial herbicide on weeds on a sunny, hot day. Apply a second application in a week if the plant has an extensive root system or has woody stems.

Tips & Warnings

  • Citric acid is a non-selective herbicide, so it will kill any plant with which it comes in contact. Do not use it to kill weeds in lawns with established grass.

Related Searches


  • Photo Credit Jupiterimages/ Images
Promoted By Zergnet



You May Also Like

  • How to Use Citric Acid in Recipes

    Citric acid is a natural flavoring, preservative and powerful antioxidant. It exists naturally in limes, lemons, oranges, grapefruits, tomatoes and pineapple. According...

  • Homemade Weed Killer With Vinegar

    In order to avoid expensive and toxic chemical herbicides in your garden, make your own weed killer with vinegar and dish soap....

  • Homemade Citric Acid and White Vinegar Weed Killer

    Removing pesky weeds is one of the most common lawn maintenance issues facing homeowners. Weeds are unsightly and can make otherwise well-manicured...

  • How to Use Citric Acid in Canning

    Citric acid is a natural preservative used as a food additive. An essential ingredient in home canning, citric acid is used to...

  • The Best Weed Killer Products

    Weeds are detrimental to your garden. They can spring up and choke your flowers and plants, turning your garden into an unattractive...

  • Homemade Formula for Weed Killer

    Many commercial weed killers are available today. Although they may be effective, many people prefer to make their own. Making homemade weed...

Related Searches

Check It Out

How to Make a Vertical Clay Pot Garden

Is DIY in your DNA? Become part of our maker community.
Submit Your Work!