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🌱 Own your outdoor space—weed-free, worry-free!
Roundup Weed & Grass Killer₄ Refill is a powerful 1.25-gallon herbicide that kills a broad spectrum of tough weeds and grasses to the root. Rainproof in 30 minutes and effective within hours, it covers up to 375 sq. ft. and is safe for use around flower beds, trees, patios, and driveways. The refill format offers a convenient, eco-conscious way to maintain your weed killer sprayer, while allowing planting 1 to 30 days post-application.







| ASIN | B0C7Y5NXQC |
| Active Ingredients | Triclopyr,Triethylamine Salt (0.122%),Fluazifop P-Butyl (0.097%),Diquat Dibromide (0.097%) |
| Best Sellers Rank | #23 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1 in Weed Killers |
| Brand Name | Roundup |
| Coverage | 375 square feet |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,966) |
| Included Components | Miracle-Gro - 5378004 |
| Item Form | Spray |
| Item Type Name | Weed & Grass Killer |
| Item Weight | 0.5 Pounds |
| Liquid Volume | 1.25 Gallons |
| Manufacturer | Scotts Miracle-Gro |
| Model Number | 5378004 |
| Part Number | 5378004 |
| UPC | 070183000340 |
| Unit Count | 160.0 Fluid Ounces |
| Warranty Description | Warranty |
N**K
Detailed Product Review: Roundup Weed & Grass Killer Refill
I recently purchased the Roundup Weed & Grass Killer Refill, specifically the 1.25-gallon size, to address some persistent weed issues in my yard. After using it for several weeks in various areas around my property, here’s an in-depth review of its performance, application, and overall value. Effectiveness The primary concern with any weed and grass killer is its effectiveness, and the Roundup Weed & Grass Killer does not disappoint. Within 24 hours of application, I noticed a significant wilting and browning of the targeted weeds and grass. By the end of the first week, most of the treated plants were completely dead. This product is particularly effective against a broad range of weeds and grasses, including tough perennial weeds. It works by penetrating the plant’s leaves and traveling down to the roots, ensuring a thorough kill that prevents regrowth. Ease of Use The refill format of this product is convenient and user-friendly. I already had a Roundup spray applicator, and transferring the liquid from the refill container to the sprayer was straightforward. The refill container has a spout designed to minimize spills and waste, making the process clean and efficient. The 1.25-gallon size is manageable and provides ample coverage for multiple applications across different areas of the yard. Application Versatility One of the standout features of this product is its versatility. I used it in various locations, including flower beds, around trees, along driveways, and on walkways. It performed consistently well across all these areas. However, it’s essential to exercise caution when using it near desirable plants, as the non-selective formula can harm any green vegetation it contacts. Using a targeted spray technique or a shield can help avoid unintentional damage. Environmental and Safety Considerations While Roundup Weed & Grass Killer is highly effective, it’s crucial to handle it with care. The product contains glyphosate, which has been a topic of controversy regarding its environmental and health impacts. It’s important to follow the safety instructions on the label meticulously. Wearing protective gear, such as gloves and long sleeves, and avoiding application on windy days can minimize exposure risks. Additionally, keeping pets and children away from treated areas until the product has dried is advisable. Longevity and Residual Effects One application of Roundup Weed & Grass Killer typically provides long-lasting results. In my experience, treated areas remained weed-free for several weeks. However, as with any herbicide, reapplication might be necessary for stubborn weeds or in areas with heavy weed pressure. The product does not leave a harmful residue in the soil, allowing for planting new flowers, trees, or shrubs in treated areas after a few days. Value for Money Given its effectiveness and ease of use, the Roundup Weed & Grass Killer Refill offers good value for money. The 1.25-gallon size is reasonably priced, especially considering the coverage it provides. Compared to other weed killers on the market, it delivers reliable and consistent results, making it a worthwhile investment for maintaining a weed-free landscape. Overall Overall, the Roundup Weed & Grass Killer Refill is a powerful and reliable solution for managing unwanted weeds and grass around your property. Its effectiveness, ease of use, and versatility make it a valuable tool for gardeners and homeowners. While it’s essential to handle the product with care and be mindful of its environmental impact, its performance in eradicating weeds and preventing regrowth is impressive. For those looking for a dependable weed and grass killer, this product is a solid choice.
Z**A
Excellent deal!
Excellent price. I usually need a few bottles to knock out all the weeds on my walkways. When this is around $15 bucks a bottle, snatch it up. I use an automatic sprayer (not the one you put in the bottle) and it's fantastic for knocking out the weeds for a few months. Just be wary ordering it with other products. Sometimes it may leak a little in transit. Don't want this product getting on anything else you buy.
J**F
Roundup Weed and Grass Killer, Refill Btls
I have a lot of Fence line around my home to which I use this Weed Spray, as well as over 100' two lane driveway. Roundup has proven itself worthy as a good Weed Control Spray. Used it for years now. Amazon has good sales on this Product so keep an eye out for that. I have a Six Gallon Electric Sprayer with hose and wand I use. Therefore its convient when there's no mixing as it's Ready to pour/fill and spray. Easy clean up with water running thru your Spraying System. I always suggest you use gloves when applying any kind of these Products as they are known to be harmful to people. I'll continue buying this Product because it has proven itself, to me, to work controlling weeds. I highly recommend Roundup Products.
S**L
Gets the weeds
Effective, not permanent, For your health be careful of applying in breeze.
J**.
Fair price
Excellent quality product at and excellent price. Some of the fastest working and longest lasting weed killer I found in a long time and I go through a lot during growing season
D**O
Deadly!
It KILLS!
F**N
The Best. It does what it will do.
DEPENDABLE, I HAVE USE IT FOR OVER 50yrs . By the way in ah few months I will be 84. and will still be using it. Thank you GRANNEE.
M**A
Great product that works
Great product, works great, no smell and I started seeing results in as short as the next day. I only use this after the rains pass by, that's when we get weeds growing everywhere. I never get to finish these bottles myself cause other family members also need it for their own place haha I rarely use this but it is used till the end for sure.
K**U
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