We apologize for any confusion. The product label for Bonide Chickweed, Clover & Oxalis Killer RTU specifies that, "If lawn needs watering, water thoroughly before application. Do not water for 48 hours after application." This is esssentially advising you to check if your lawn will need regular watering before you apply the herbicide because after you apply the herbicide, you need to wait at least 48 hours after that application before watering again. You would not want to apply any herbicide if the ground is completely saturated or the plants are dripping wet since this would prohibit even coverage and drying of the herbicide.