“This Burns Weeds in 1 Day!” — But Will They Really Never Grow Again?Probably not. A homemade weed killer may make weeds look dead within a day, but that doesn’t necessarily kill the roots. Many perennial weeds can regrow from their underground roots or crowns.
A safer natural approach
- Pull or dig weeds when the soil is moist, removing as much of the root as possible.
- Smother persistent weeds with cardboard covered by several inches of mulch.
- Boiling water can kill weeds growing in cracks in paths and driveways, but keep it away from desirable plants.
- Mulch 2–4 inches deep around garden plants to block light and reduce new weed growth.
- Remove weeds before they produce seeds to prevent next year’s crop.
⚠️ Be careful with viral “weed killer” recipes
Recipes containing vinegar, salt, bleach, or other household chemicals can damage desirable plants, soil, and surrounding surfaces. Salt in particular can accumulate in soil and make it difficult for plants to grow.
And don’t mix household chemicals together—some combinations can produce dangerous gases.
Bottom line: There is no natural spray that reliably kills every weed permanently in one day. The most effective long-term strategy is kill/smother existing weeds + prevent new seeds from germinating.
