#1 Home Improvement Retailer

Customer Reviews for Roundup 35.2 oz. Weed and Grass Killer Concentrate

Internet #302957529

Model #5009410

Store SKU #607394

  • Kills weeds and grasses to the root
  • Visible results in 12 hours
  • Effective and economical for large areas

Customer Reviews

  • 4.1
    out of 2,782 reviews
  • 79% recommend this product
Filter by:
Showing 1-10 of 2,782 reviews
Works fast but doesn't finish the job.
I've been using a generic, Farm Works, for years. Problem was it took days to show signs of dying but, after about a week the weeds died & shriveled up completely. The Roundup shows signs of killing within a day but, even after a week there was still fresh green roots. I had to reapply today because they were still alive & new weeds were coming up. For the high cost of this product, it's not worth the money. Maybe if you've got tiny, spotty weeds it's ok but, if you have a lot of heavy growth it'll take several applications. I'm going back to them generic brand. No
by PeterB
Response from Roundup TeamFeb 17, 2021
We hate to hear that you did not enjoy your experience with Roundup Weed and Grass Killer Concentrate Plus. Visible results occur within 24-48 hours after application, with a complete kill in 4 weeks. A lower dilution rate (3oz per gallon) will not be as effective as the higher dilution rate (6 oz.), especially on perennial weeds. Apply when daytime temperatures are consistently between 60 - 85 degrees F. We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please call 877-220-3089 for assistance. When calling, please refer to this review. roundup
Killed everything in the area as advertised. After clearing bed, topping off with material weed ...
Killed everything in the area as advertised. After clearing bed, topping off with material weed barrier and mulch, weeds are popping up after just 2 weeks!
by dfjlgh
Response from Roundup TeamSep 29, 2020
We apologize that Roundup Weed and Grass Killer Concentrate Plus did not meet your expectations. This product has no residual and will not prevent new weds from germinating. We at Roundup never want you to be unsatisfied and for this reason we offer a product guarantee. At your earliest convenience, please contact us and refer to your review to see what can be done. We can be reached at 877-220-3089. roundup
Works really good specialy when you mix Speed Zone weed eater you will kill ivy around your yard ...
Works really good specialy when you mix Speed Zone weed eater you will kill ivy around your yard or home.
by ronp
This product kills weeds very quickly and prevents regrowth, I would recommend it.
This product kills weeds very quickly and prevents regrowth, I would recommend it.
by Mtsakir2
1 person found this helpful
The area behind my fence was filled with a lot of Japaneses Stilt Grass as well as other weeds. O...
The area behind my fence was filled with a lot of Japaneses Stilt Grass as well as other weeds. One spray and all dead.
by JoeinMD
Sprayed 2 days ago, grass dead in places the mower will not cut. Good product.
Sprayed 2 days ago, grass dead in places the mower will not cut. Good product.
by Enots
1 person found this helpful
Roundup Plus (red - 18% glyphosate) does not work as quickly as it has in the past. It takes at ...
Roundup Plus (red - 18% glyphosate) does not work as quickly as it has in the past. It takes at least 24 hours or more to see results. I use it to kill weed grasses mostly. Other glyphosate products generally take a week or more to show results. If you are not interested in quick results, better to use less expensive products with 41% or more glyphosate.
by grassKutter
Overall a good product, it does what they say it will. Careful when mixing and handling this prod...
Overall a good product, it does what they say it will. Careful when mixing and handling this product. Use a tank applicator and spray only where you want to kill weeds. Do not walk through wet areas you may have just sprayed. As I said a good product and would recommend.....
by BaDaBing
1 person found this helpful
Takes care of anything green super quick. Great for spot treatment too.
Takes care of anything green super quick. Great for spot treatment too.
by andreac
Did not kill the grass and weeds as labeled unhappy with the results
Did not kill the grass and weeds as labeled unhappy with the results
by fr66
Response from ScottsCustomerCareJan 31, 2019
We are sorry that you did not get the results you expected from Roundup Concentrate Plus Weed and Grass Killer. For waxy or hard to control weeds, you may need to poke holes in the foliage with a garden rake before applying, so that the product can be sure to penetrate the waxy surface. We would be interested in speaking with you further about this so that we can learn why the product may not have worked. If you would be willing, we ask that you call us at 877-220-3089 and refer to your review so that we can make a more complete report to our Quality Assurance Department. Scotts
2 people found this helpful
Showing 1-10 of 2,782 reviews