Vinegar as an organic weed killer

by Lars on May 22, 2007


Looking for an organic weed killer? Try vinegar!

Not all “chemicals” are a no-no in organic gardening. Vinegar — which is in fact dilute acetic acid — can be used as an effective and natural way to kill weeds. If you can’t pull up a particular weed or don’t want to deface your garden or yard, zap the weed with vinegar on a sunny day.

Here’s a before and after shot from using our 20 percent vinegar organic weed killer product.

We sprayed on the vinegar at about 9 a.m., and then came back to check it again around 3 p.m.

Although you can use plain old vinegar that you get from the grocery store, it isn’t as strong as 20 percent vinegar solution, so it won’t work as well.

It works as a contact defoliant, and not as a poison. Basically, it burns up everything it touches when you spray it on a plant. So you need to be careful not to spray the “good plants” when you apply it. On really tough plants, it might take a couple of applications if the plant starts to recover.



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{ 1 trackback }

21 percent vinegar as a weed killer, with extra ingredients!
08.23.07 at 3:56 pm

{ 6 comments… read them below or add one }

Carolyn 05.23.07 at 9:21 am

Where can one purchase the higher powered vinegar locally. What type of store handles it? -Rather save the shipping and handling fee by purchasing locally. Thanks!

Priscilla 03.18.09 at 2:25 am

I am having a tough time finding 20% vinegar. Where did you go to find it. I found a gallon of 30% at a feed store but it was $16.00.

It works wonderfully. I cut the 30% in half with water, added 1/2 cup of orange oil and 1 tsp of Dr. Bronner;s natural soap. This mix really does the job.

Can I make the stronger vinegar by freezing 10% and then pouring off the water? Thank you!

Weed Killer Caleb 04.17.09 at 3:03 am

Vinegar works well as a weed killer as long as there isn’t anything around you want to keep alive but for driveways and sidewalks, it works great!

Charles Janoe 07.22.09 at 9:02 pm

I see that you have already been asked about where to get this 20% solution. I need to ask too. I live in Tacoma, WA and I have looked all over and only found 5-7% solutions. Also I was told that I could take the vinegar and distile it to get the 20%, can I do that. Thank you

Steve 08.07.09 at 5:01 pm

I would like to try a 20% solution vinegar for my lawn weed. Cannot locate a retailer. Please help. Thanks

Charles Janoe 03.10.10 at 4:39 am

Hello
Anyone there??? I need to know where to buy this 20 percent vinegar……….

———

It is no longer available, unfortunately. You might check a local garden center that carries organics to see if they have something similar.

We do carry these other effective natural weed killers:
http://www.cleanairgardening.com/organic-weed-control.html
http://www.cleanairgardening.com/organic-insecticide-1gallon.html
http://www.cleanairgardening.com/organic-weed-killer.html
http://www.cleanairgardening.com/organicweed.html

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