That headline is overstated. There is no homemade weed killer that is both harmless and guaranteed to dry every weed in 2 hours.
Many DIY recipes can damage the visible parts of weeds, but they often don’t kill the roots, so the weeds may grow back.
Here are some common homemade methods and what they actually do:
- Boiling water: Effective for weeds growing in cracks in driveways or patios. It quickly damages the leaves and stems but may not kill deep-rooted weeds.
- White vinegar: Household vinegar can burn the leaves of young weeds on sunny days. It usually doesn’t reach the roots, so repeat treatments may be needed.
- Hand pulling: The most reliable non-chemical method, especially if you remove the entire root.
- Mulch: Covering garden beds with mulch blocks sunlight and helps prevent new weeds from sprouting.
Be cautious with popular internet recipes
- Salt: It can kill weeds, but it also stays in the soil and may prevent desirable plants from growing for a long time.
- Bleach: Not recommended. It can damage soil, harm nearby plants, and pose environmental and health risks.
Bottom line
If you want a non-toxic approach, the best options are:
- Boiling water for weeds in paved areas.
- Hand-pulling weeds with their roots.
- Mulching to prevent new weeds.
These methods are safer for your garden than relying on homemade mixtures that promise instant, permanent results.