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Preventing and Killing Weeds Between Bricks

Category Weeds
Seeds will land and germinate in your brick driveway, walkway or patio. This guide is about preventing and killing weeds between bricks.


Share on ThriftyFunThis guide contains the following solutions. Have something to add? Please share your solution!

February 28, 20053 found this helpful

Vinegar can kill weeds and grass when poured full strength in cement driveways or brick walkways.

By imaqt1962

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May 24, 20170 found this helpful

Only very high acidic content. Table vinegar is useless.

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May 6, 20051 found this helpful

To keep grass from growing between bricks, or cement sidewalk cracks, sprinkle the spaces with salt.

By Bobbie

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June 4, 20051 found this helpful

Use rock salt to prevent weeds in cement cracks

By linda moreland

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August 17, 20060 found this helpful


I have brick around a pool. I have children that play around my pool. Grass and weeds are growing from the cracks. How do I kill the weeds? The children are bare foot and I also have a possible run off. I am afraid to use anything toxic as I might harm my children.

Any suggestions?

Jim from Churchville, PA


Jim, If you're looking to avoid run-off and protect your children's bare feet, your best options are hand pulling, pouring boiling water on the weeds or using a propane torch to singe them. Many people might suggest using a solution made from 1 gallon of vinegar (regular 5% distilled vinegar found at the grocery store), 1 cup of salt and 1 teaspoon of liquid dish soap. I wouldn't. Because this is a pool area frequented by bare feet, I would stick to a non-chemical solution. Vinegar can be mildly irritating to the skin of some people (even in low 5% concentrations). Also, using vinegar repeatedly on concrete in a sunny area will cause it to degrade over time. Finally, with both the salt and vinegar there's a chance of run-off. To hand pull the weeds, wet the area first and use a small shovel to make sure you get the roots out. Place some shredded newspaper followed by some sand or small rocks in the cracks to prevent the weeds from re-sprouting. Pouring boiling water or burning the weeds with a torch will work fine, but those methods may require several attempts before you can safely say you've accomplished your goal.

Young kids love to pull things so get them involved. You might want to throw a "weeding party" which ends with a rewarding dip in the pool.


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By guest (Guest Post)
July 25, 20060 found this helpful

all I do is fill a spray bottle with bleach and spray the area. careful not to spray flowers or other plants.

also not around children or when it's windy (if wind is coming towards you) good luck

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Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

By 0 found this helpful
September 20, 2016

How do you get rid of weeds between patio bricks?

Answer Was this helpful? Yes
February 1, 20170 found this helpful

Aside from breaking it up, or spraying with Round Up, you can make a home made vinegar solution or do what I did: pour boiling water on them. This will kill it down to the root, and then it will be easy to rake away.

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February 3, 20171 found this helpful

Straight vinegar in a spray bottle is cheap and effective.

Reply Was this helpful? 1
March 31, 20170 found this helpful

White vinager or apple cider will long does it take to kill grass

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April 4, 20170 found this helpful

I agree about boiling water. I use it between some bricks in teh backyard and also in the cracks in the sidewalk and driveway. It kills the roots but doesn't poison anything. It's also good if you see a place where sugar ants are coming up.

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September 16, 20120 found this helpful

What is most effective way to kill weeds that keep growing through my patio?

By A. Laverick

Answer Was this helpful? Yes
September 24, 20120 found this helpful

Boiling hot water, kills the plants it's roots and any seeds in the ground cheap and easy.

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September 24, 20123 found this helpful

Boiling salt water is the quickest, safest and cheapest way to kill weeds in a walkway or patio. Just bring a large pot of water to boil and add 1/2 to 1 full container of salt. ( I use the cheapest kind I can find). Once the salt is completely dissolved use a pitcher to pour the water into the cracks were the weeds keep growing, after a few hours you can pull out the wilted, dead weeds.

I pour salt into the sidewalk cracks periodically throughout the growing season, especially after a rain storm. The saltwater dehydrates any roots under the walk and the straight salt keeps any roots from coming back. This is safe to use around children and pets, and won't hurt the environment. I even use it on the walkway between my flower beds and it doesn't hurt any of the established plants.

Reply Was this helpful? 3
April 9, 20160 found this helpful

Adding a little vinegar also to it d

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August 4, 20160 found this helpful

I would not use boiling water on a patio extreme heat and or cold will damage the patio stones and cause them to crack or bust apart over time

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September 19, 20160 found this helpful

White or cider?

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April 28, 2008

What can I use in my brick driveway, to keep the grass and weeds from growing in between the bricks? I would like to use a product that would keep the plants away for at least a year. Is there a product that will do this? I do know how to kill the plants, but want something that will prevent them from growing!

Hardiness Zone: 6a

Sharon from Southern Illinois

Answer Was this helpful? Yes
By guest (Guest Post)
May 14, 20080 found this helpful

I live in Montreal Canada, and had the same problem.

HOME DEPOT here sells a fine sand called MAGIC SAND, you spread it on your bricks, brush it on the bricks so it fills in between them, then use a hose with a fine mist spray of water to wet the sand, it then hardens like a joint compound and stops all weed growth.

Reply Was this helpful? Yes
By guest (Guest Post)
August 19, 20082 found this helpful

In regards to Roundup, please look into the kind of company you're promoting. Terminator technology is not good for the Earth, I don't care if you're liberal or conservative. Lots of abuses by Monsanto--I will never support them or buy another one of their products.

That said, I'll try the salt and the magic sand, both sound good!

Reply Was this helpful? 2
March 19, 20090 found this helpful

I believe the original requester wanted no grass, not short grass. In the winter, vegetation on the driveway contributes together with ice to slipperiness.

Roundup isn't the only option. A second's Googling for grass killer turned up a green (oxymoron given the purpose?) product called BurnOut, a concoction of lemon juice, vinegar, and clove oil. Have no idea how well or how long it would work, since clove oil is volatile and the acids would rinse away. Or, there's another synthetic product called Preen, and another one called Remuda and another one called Spectracide. Plain old salt would probably be the "greenest" long lasting option. Or have some fun every few months with a Dragon's Breath torch and a tank of propane.

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July 20, 20160 found this helpful

It doesn't work

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April 23, 20170 found this helpful

Will magic sand work to suppress weeds and grass growing among my bluestone areas ?

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By 0 found this helpful
June 21, 2013

I"ve got some plants/weeds starting to come out of the mortar on my brick chimney. It was retacked about 12 years ago when I bought the house. I didn't use the fireplace this year or last and wonder if that has exacerbated the problem. I've read that salt erodes mortar, so I don't want to use that. What should I use? A mild herbicide?

By Andrew

Answer Was this helpful? Yes
August 4, 20131 found this helpful

Why not just make a fire in the fireplace? By the way, there is no such thing as a "mild" herbicide. They are all toxic to your environment.

Reply Was this helpful? 1

By 0 found this helpful
May 29, 2013

I have lovely green moss of some kind volunteering in my sandstone patio in the hot, afternoon sun. Unfortunately I also have dandelions and other weeds cropping up, even right in the midst of the moss. Can I kill the weeds without killing the moss, and if so, how? Pulling the weeds is a full-time job!

By Julie L.

Answer Was this helpful? Yes
June 3, 20130 found this helpful

You are just going to have to bite the bullet here. Most broadleaf weed killers will also damage and perhaps kill the moss. You might take a sample of the moss to your local nursery or Cooperative Extension agent to an accurate identification, and then look for a broadleaf herbicide that says it is safe for your particular moss.

Reply Was this helpful? Yes
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