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how to keep weeds from growing in concrete cracks

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Weeds leave your driveway and sidewalks looking a little ragged. Luckily, removing them can be simpler than you’d think.

Pouring vinegar on weeds in your driveway or sidewalks will remove them over a week or two. You may have to apply the vinegar several times, though, depending on the weather. Rain can wash it away before it takes effect.

I hope this has helped you conquer your weed problem for good.

Conclusion

The problem is that water cools relatively quickly. If you’re using boiling water as a weed remover, you’ll need to have a kettle nearby constantly heating more. It’s probably the cheapest solution, but it’s difficult to use on more than a few plants at a time.

Sealing cracks is the easiest way to prevent weeds. If there’s no place for dirt and seeds to collect, then there’s no way for weeds to grow.

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Once you’ve gotten rid of the weeds in the first place, you want to prevent them form coming back. There are a couple easy things you can put between slabs to keep your driveway or patio permanently plant-free.

Note: if you live in a cold climate, you may note be able to seal every crack. Seams and edges between slabs are there on purpose to let the concrete expand and contract during temperature changes. Sealing these cracks can lead to more, worse cracks appearing over the spring thaw.

How to keep weeds from growing in concrete cracks

Pack the crack tightly with sand before filling it with a quick-drying joint sealant. Cut the sealant’s tip and insert it directly into the crack. Squeeze the product into the crack and overfill to allow for the shrinkage that occurs after drying.

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Dig out as much of the weed as possible before cleaning out any remaining dirt or debris from the crack with water and a stiff wire brush. Allow the concrete to dry before continuing.

Aside from being aesthetically unpleasant, weeds poking through sidewalks pose several threats to your asphalt, and family. If left unattended, the weeds will thrive, grow and can eventually create severe concrete deformations and heaving, which is only mended by tearing out the slab. Larger weeds are also tripping hazards, and will continue to reemerge after countless applications of herbicides. Manually eradicate the weeds before prepping the cracks and applying a quick-drying joint sealant.

Spray the weeds with a 5-percent acetic household vinegar. Concentrate the spray on the weeds, reapplying several times over a two- to three-day period or until the weed tops and roots are dead.

Allow the crack sealer to dry for 12 to 24 hours, or according to the package directions. Examine the crack and reapply, if necessary, to fill any remaining small holes or voids in the hardened product.