How to Use Bleach to Kill Weeds in the Driveway, Walkway or Patio

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Wondering how to kill weeds on walkways, driveways, patios? Weeds will grow in the cracks of pavement, concrete and in between pavers. And since the base of the plant cannot be accessed, it's difficult to pull up the weed - roots or the plant base are usually left behind, which means the weed will grow back. Bleach uses are many and varied and one effective use for bleach is as a weed killer. This homemade weed killer is an easy and cheap method to kill weeds in concrete, pavement, or pavers.

Things You'll Need

  • Spray Bottle
  • Bleach
  • Rubber Gloves
  • Water
  • Gardening clothes
  • Black Sharpie Marker
  • Masking Tape
  • Weeds in the driveway, patio or walkway!
  • Put on gardening clothes that will be suitable to wear while handling the bleach weed killer solution. Bleach will ruin clothing if it's spilled on the fabric or if the mist from the spray bottle contacts the clothing fabric.

  • Put on rubber gloves and keep them on while mixing and applying the homemade weed killer.

  • Place a piece of masking tape on the side of an empty spray bottle (available at the drug store or department stores like Walmart or Target) and use a black permanent marker like a Sharpie to write "Homemade Weed Killer" or "Bleach Weed Killer" or something to this effect.

  • Fill the bottle approximately half-way with tap water.

  • Fill the bottle the rest of the way with bleach; the homemade weed killer should be comprised of approximately 50% bleach and 50% water.

  • Spray the bleach weed killer onto the weeds' leaves and onto the stem at the very base of the weeds in the driveway, walkways and pavers. Depending on the size of the weed in the concrete/pavement, you'll want to spray approximately 10 sprays at the base of the plant to kill a small weed, while you may need twice that amount for a medium or large weed.

  • Check back in 24 hours to see if more homemade weed killer will need to be applied. Within 24 hours, the weed should be wilted; if the weed looks healthy, repeat step 6.

  • Once you've killed weeds in the driveway, walkway or patio, pull them out. For small weeds, wait a couple days until the weeds have dried up and use a broom to sweep away the dead weed remnants.

Tips & Warnings

  • For areas with very dry soil, lightly water the weeds before applying the homemade bleach weed killer. This will help the weed killer travel through the soil to the roots more effectively.
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