How to Use Salt Water or Soap to Kill Poison Ivy


Easily distinguished by its clusters of three leaves together, poison ivy can be found anywhere in the United States but seems to be more prevalent in the Midwest. The amazingly stubborn plant easily defies most attempts to kill it and can cause big problems for those who come in contact with it causing varying degrees of itching and blistering depending on the person. If you would rather opt for a safer and more natural solution to this growing problem both salt and dish soap can take the place of pricey weed killers.

Kill Poison Ivy with Salt Water

Step 1

Dissolve 1/4 cup table salt into 1 qt. hot water and let it cool.

Step 2

Pour the salty water into a spray bottle.

Step 3

Saturate the leaves and stems of the poison ivy plant with the solution.

Step 4

Repeat this process every day until the poison ivy is gone.

Kill the Poison Ivy with Soap

Step 1

Fill a spray bottle with water.

Step 2

Add 2 to 4 tsp. dish soap to the water and reattach the top before shaking well to mix it up.

Step 3

Saturate the poison ivy with the soapy water.

Step 4

Repeat his daily until the poison ivy is gone.

Kill poison Ivy with Salt and Soap

Step 1

Pour 1 gallon white vinegar into a pot and add 1 cup salt.

Step 2

Heat up the vinegar just enough to help dissolve the salt.

Step 3

Add six to eight drops of dish soap into the solution.

Step 4

Pour the solution into a spray bottle and use it to saturate the poison ivy.

Step 5

Repeat this every other day to kill off poison ivy.

Tips and Warnings

  • Do not burn or mow over poison ivy. This will not kill it and can be potentially harmful to you as the oils within it become airborne. Both salt and vinegar can have a devastating effect on other plant life nearby. Use these solutions carefully.

Things You'll Need

  • Table salt
  • Dish soap
  • Spray bottle
  • White vinegar


  • Salt Works: Salt Uses & Tips
  • Old Fashioned Living: Poison Ivy Remedies and Tips
  • Poison Ivy, Oak, and Sumac Information Center: Control
Keywords: kill poison ivy, poison ivy salt, poison ivy soap

About this Author

Melynda Sorrels spent 10 years in the military working in different capacities of the medical field, including dental assisting, health services administration, decontamination, and urgent medical care. Awarded the National Guardsman’s Medal for Lifesaving efforts in 2002, Sorrels was also a nominee for a Red Cross Award and a certified EMT-B for four years.