“THIS burns weeds in 1 day! They NEVER grow again!” — fact check 🌱 That claim is misleading. Some treatments can make weeds turn brown within a day, but that doesn’t mean the weed is permanently dead. Vinegar/acetic acid can rapidly burn the foliage of young weeds. University extension guidance reports that appropriately formulated acetic-acid herbicides can kill many small annual weeds within about 24 hours. U University of Maryland Extension Established perennial weeds often survive because their roots remain alive and can send up new growth. A Ask Extension +1 Salt + vinegar recipes are not a good “natural” permanent solution. Salt can damage soil, beneficial organisms, and nearby plants, while the weeds may still return. A Ask Extension +1 Household vinegar isn’t the same as herbicidal vinegar. Stronger acetic-acid products can cause serious skin and eye injuries and should only be used according to their pesticide label. U University of Maryland Extension 🌿 A safer long-term approach For a garden or flower bed, pull the weeds while they’re small and cover bare soil with about 2–4 inches (5–10 cm) of mulch. This suppresses existing weeds and makes new ones much harder to establish. For weeds in driveways or paving cracks, mechanical removal or an appropriately labeled weed-control product is generally preferable to dumping salt into garden soil. Bottom line: “Brown in 1 day” can be real; “never grow again” is not. U A Sources