You’ll need: Apple Cider Vinegar, Epsom Salt, and a Spray Bottle.
Epsom salt, named for a bitter saline spring at Epsom in Surrey, England, is not actually salt but a naturally occurring pure mineral compound of magnesium and sulfate. Long known as a natural remedy for a number of ailments, Epsom salt has numerous health benefits as well as many beauty, household, and gardening-related uses. (Check some out here.) Epsom salt pulls moisture from everything around it, including the soil and weeds.
United States Department of Agriculture (USDA) researchers found that vinegar is an effective weed killer. At 5 percent acetic acid, typically found in household vinegar, including apple cider vinegar, vinegar killed weeds during the first two weeks of emergence. Killing of adult weeds required concentrations of acetic acid greater than 10 percent. Apple cider vinegar and other types of vinegar kill plants by drying out their top growth. Vinegar will not kill the roots, so some weeds will regrow after treatment. Weeds or plants that have leaves covered by a waxy cuticle do not readily absorb vinegar and so may not be killed.
Step 1: Pour the Apple Cider Vinegar in Your Bottle
Step 2: Add the Epsom Salt
Step 3: Shake Well and Spray