We're truly sorry to hear that you were disappointed with Roundup Weed and Grass Killer4. We appreciate you taking the time to share your feedback with us. For best results, apply when weeds are actively growing and the air temperature is above 60°F. Generally, applications are best made when temperatures are between 60°F and 85°F. We want you to feel confident in our products, and your satisfaction is important to us. That's why we offer a product guarantee: If, for any reason, you, the consumer, are not satisfied with the results after using this product, you are entitled to a refund, with certain limitations applying. Please reach out to us at 866-324-2647 at your earliest convenience if you need further assistance.

We're sorry to read about your disappointment with Roundup Weed & Grass Killer4 with Concentrate Refill and appreciate your feedback. Even though this is a non-selective weed control, some weeds, like weeds with a waxy surface, are more difficult to control. Also if the weed is mature, no matter what weed, it will be more difficult to control. It is helpful to use any weed control when weeds are young and tender. While weeds will begin to wilt within hours after an application, a complete kill may take 1-2 weeks. If needed, this product can be reapplied after 28 days. We want you to be confident in our products. For this reason, we offer a product guarantee. If for any reason you, the consumer, are not satisfied with the results after using this product, you are entitled to get your money back. Limitations apply. At your earliest convenience, please reach out to us at 866-324-2647 if we can further assist.

We're concerned to hear about your experience with Roundup Weed & Grass Killer Ready-To-Use Container with Battery-Operated Wand. We want to assure you that we take your feedback seriously and are committed to helping you achieve the best possible results with our products. We would like the opportunity to gather some additional information and offer personalized assistance. Please reach out to our Consumer Services team at 866-324-2647. We're here to help and look forward to assisting you!

We're truly sorry to hear that you were disappointed with Roundup Weed and Grass Killer4. We appreciate you taking the time to share your feedback with us. Wand Extension: Ensure the wand is completely extended into the open position. It should click into position when fully extended. Nozzle Position: Check if the nozzle is turned completely to one of the three "on" positions. If the nozzle is positioned between settings, the sprayer will not work correctly. We want you to feel confident in our products, and your satisfaction is important to us. That's why we offer a product guarantee: If, for any reason, you, the consumer, are not satisfied with the results after using this product, you are entitled to a refund, with certain limitations applying. Please reach out to us at 866-324-2647 at your earliest convenience if you need further assistance.

Hello Meredith. We're sorry to read about your disappointment with Roundup Weed & Grass Killer4 with Concentrate Refill and appreciate your feedback. To get the best results when making an application of Roundup Weed & Grass Killer4 Concentrate, we suggest doing so when the weeds are actively growing and your air temperatures are between 60 and 85 degrees. It can take up to 2 weeks for complete control. Also, to get the best results, the plant leaves must be thoroughly and uniformly covered with the spray solution. We want you to be confident in our products. For this reason, we offer a product guarantee. If for any reason you, the consumer, are not satisfied with the results after using this product, you are entitled to get your money back. Limitations apply. At your earliest convenience, please reach out to us at 866-324-2647 if we can further assist.

We're sorry to read about your disappointment with Roundup Weed & Grass Killer4 and appreciate your feedback. Apply when weeds are actively growing and when the temperature is above 60°F. When applied according to directions this will control the listed weeds. Mature weeds may need more than one application. Complete kill can take 1-2 weeks. We want you to be confident in our products. For this reason, we offer a product guarantee. If for any reason you, the consumer, are not satisfied with the results after using this product, you are entitled to get your money back. Limitations apply. At your earliest convenience, please reach out to us at 866-324-2647 if we can further assist.