Many people decide to use the RoundUp product as it is the best broadleaf weed killer for lawns. Its efficiency caused much of the hype around this product. The herbicide has numerous variations and got significant formula improvements since the 70s when it was first produced. You can tell these differences even by taking a look at the efficiency of the RoundUp solution. For example, nowadays, it takes as little as a day for you to notice the impact of the herbicide, especially during the hot days.