If you’re referring to the viral “kills weeds in 1 day and they never grow again” trick, the claim is too good to be true.
A common recipe online uses vinegar + salt + dish soap. It can quickly brown and kill the visible parts of small, young weeds, sometimes within a day. But it generally doesn’t kill the roots of established perennial weeds, so they can grow back.
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🌱 For longer-lasting weed control
Pull or dig out the roots of established weeds.
Cover bare soil with about 3 inches of mulch to suppress new weeds.
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For cracks in driveways or paving, repeated mechanical removal or an appropriate labeled herbicide can be more effective.
Avoid adding salt to garden soil. It can accumulate and damage desirable plants, soil organisms, and soil structure.
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Don’t use bleach as a weed killer; it can damage soil and may create hazardous reactions when mixed with other chemicals.
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Bottom line: A homemade vinegar mixture may burn weeds down quickly, but “never grow again” is not accurate—especially for deep-rooted perennial weeds.
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