The claim “the best homemade weed killer that dries everything in 2 hours” is a popular gardening headline, but it’s important to know that most homemade weed killers are not selective—they can damage or kill desirable plants too.
A common non-chemical-style homemade spray is:
Simple vinegar weed spray
Ingredients
- 1 gallon (3.8 L) white vinegar (5% acetic acid)
- 1–2 tablespoons liquid dish soap
How to use
- Mix the ingredients in a spray bottle or garden sprayer.
- Spray directly onto the leaves of weeds on a warm, sunny, dry day.
- Avoid spraying nearby grass, flowers, vegetables, or shrubs.
What it does
- Vinegar can quickly dry out and brown the leaves of many young weeds.
- The soap helps the spray stick to the leaf surface.
- Results may appear within hours, but roots often survive, especially with deep-rooted perennial weeds, so regrowth is common.
Avoid adding salt
Many viral recipes include salt, but salt can build up in soil and make the area difficult for other plants to grow in later.
For longer-lasting weed control:
- Pull weeds and remove the roots when possible.
- Apply mulch to block sunlight.
- Use landscape fabric or ground covers in problem areas.
So, vinegar sprays can be useful for small weed patches in cracks and paths, but there is no homemade spray that safely “dries everything” in two hours without also risking nearby plants.
