Claims that a homemade weed killer will “dry everything in 2 hours” are often exaggerated. Some homemade mixtures can make weed leaves look burned quickly, but they may also harm grass, flowers, soil, and other plants if they are not applied carefully.
A simple lower-toxicity weed control spray is:
Vinegar + dish soap weed spray
Ingredients
- 1 gallon (about 3.8 L) white vinegar (5% acetic acid)
- 1–2 teaspoons dish soap
How to use
- Mix the ingredients in a spray bottle or garden sprayer.
- Spray directly onto weed leaves on a dry, sunny day.
- Avoid spraying desirable plants—the mixture does not know the difference between weeds and garden plants.
- Repeat if weeds grow back, as vinegar often affects the leaves more than the roots.
Other effective non-poison approaches
- Boiling water: Good for weeds in cracks, paths, and driveways.
- Mulch: Blocks sunlight and reduces new weed growth.
- Hand-pulling after rain: Makes it easier to remove roots.
Avoid using large amounts of salt as a weed killer in garden soil; it can damage the soil and prevent plants from growing there.
