This stuff works! We tried it out last week on a patch of weeds here in the nursery in a side by side comparison with 20% Vinegar. Within about 5 minutes (I kid you not!) the weeds started drooping. They were dead within an hour. It was amazing! I was floored by its effects. Not only did all the weeds die (even tough ones like spurge, sedge, plantain and horse herb), but they stayed dead. The Vinegar made the weeds droop, but within 3 days they were back with a vengeance. Burn Out is made of clove oil and citric acid, so it smells great and is pet and people friendly. It kills the root without translocating to other plants, making it perfect for veggie gardens! We really like it, so we got a concentrate and a ready-to-use spray. We think this is a winner!