You can make a simple homemade herbicide using common household ingredients, but keep in mind: these work best on small weeds, driveways, and cracks, and they can also affect any plant they touch (so use carefully).
1) Vinegar + Salt + Dish Soap (most common)
This is one of the strongest DIY options.
Ingredients:
- 1 liter white vinegar (acetic acid)
- 2–3 tablespoons salt
- 1 teaspoon liquid dish soap
How it works:
- Vinegar dries out plant leaves
- Salt dehydrates roots and prevents regrowth
- Soap helps the mixture stick to leaves
How to use:
Spray directly on weeds during a hot, sunny day for best results.
2) Boiling Water (simplest method)
- Pour boiling water directly onto weeds in sidewalk cracks or gravel areas
- Works instantly by damaging plant cells
3) Vinegar Only (milder option)
- Spray undiluted white vinegar on leaves
- May require repeat applications
Important safety notes:
- These are non-selective: they kill any plant they touch, not just weeds
- Avoid spraying near grass, flowers, or crops you want to keep
- Wear gloves and avoid skin/eye contact
- Don’t store mixtures in metal containers (vinegar reacts with metal)
If you tell me where you want to use it (garden, driveway, field, etc.), I can suggest the safest and most effective option for that specific situation.
