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Customer ratings & reviews for
Ortho GroundClear Weed & Grass Killer Super Concentrate1, 64 fl. oz.
3.9 out of 5 stars
stars189 ratings169 reviews
  1. 5 stars64% (121)
  2. 4 stars9% (17)
  3. 3 stars3% (5)
  4. 2 stars3% (6)
  5. 1 star21% (40)
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Showing 1-10 of 169 reviews
Apr 15, 2025
Mike from AZ
5 out of 5 stars review

Verified Purchase

Easy and fast weed elimination!

Excellent product. Been using it for years and it eliminates the weeds by the next day, or even sooner. Makes weed killing easy on my acre.

Review from Ortho
Helpful?747HO059CYBM13603804174
Apr 2, 2020
George112
5 out of 5 stars review

Quickly kills unwanted grass and weeds fast

[This review was collected as part of a promotion.] I received this product about a month ago. I was preparing a 18” wide area for new stone between pool concrete and a fence all the way around 16'x 32' pool. This area had become overgrown with grass and weeds. I was able to easily mix the Ortho Ground Clear into a one gallon sprayer. Then sprayed the entire area which quickly killed everything and replenished the space with 6000lb of river rock. It's spring and nothing is growing up through the stones.

Review from Ortho
Helpful?747HO059CYBM13603804174
Aug 13, 2024
Tinker58
5 out of 5 stars review

Awesome Timesaver!

I won't use anything else! Just be sure to give it a chance. I always spray at dusk when there's no or very little breeze and no rain is forecasted. Then, in the morning, I go back over the older, more established weeds. It can take a couple applications to kill the thick ones. It isn't made for tiny trees or anything with a thick, solid stem. Also, I see a lot of people can't get it to work. Here's what works for me. Remove the sprayer. Make sure the cap on the jug is in the OFF position. At the end of the curly hose is a nipple cap. Push the nipple onto the cap of the jug until you hear a ‘click'. Open the arm on the sprayer until it clicks in position. Remove the tiny paper tab that engages the batteries. (If it's missing, you may have to replace the batteries.) Slide the tiny clip to the UNlocked position and turn the cap on the jug to OPEN. Point the sprayer away from you and close to the ground. NOW squeeze the handle while pressing the button to dispense the product. To put it away, work the instructions in reverse.

Review from Ortho
Helpful?747HO059CYBM13603804174
Jul 18, 2024
Joe C.
5 out of 5 stars review

EXCELLENT PRODUCT..PERFORMED EXACTLY AS ADVERTISED

I purchased this product about a month ago and I applied it with the sprayer provided with the product. I followed all directions as posted on the product packaging. In the past I've used both organic and non-organic grass/weed killers and the non-organic type have always performed better than the organic type. But I wanted to use this in a swing-set/play area in my back yard so I thought that I would give the Ortho a try...WOW was I ever surprised …within 15 minuets or so after spraying, evidence of the weeds/grass starting to turn brown and shrivel was easily observable. Within two days, all of the weeds/grass that I sprayed were brown. I've already purchased more. I highly recommend this product! It performed exactly as advertised! Joe C. Detroit, MI.

Review from Ortho
Helpful?747HO059CYBM13603804174
Apr 9, 2020
MrGreenThumb
5 out of 5 stars review

Definitely Clears the Ground

[This review was collected as part of a promotion.] I used Ortho GroundClear around my buildings on the farm and it kills everything it comes in contact with! Does a nice job of keeping unwanted weeds from growing up alongside the sheds! I will definitely be purchasing this product again!

Review from Ortho
Helpful?747HO059CYBM13603804174
May 23, 2024
Kathy
5 out of 5 stars review

Verified Purchase

IT WORKS

This stuff works better than others. Spray on and watch the weeds die within 30 minutes. Concentrate is a great value - makes about 10 gallons.

Helpful?747HO059CYBM13603804174
May 22, 2024
Ms Boo
5 out of 5 stars review

Verified Purchase

Kills on the spot

Does the job of killing weed or any Vegetation you don't want. Only problem had was the label instructions sticking together.

Helpful?747HO059CYBM13603804174
Aug 27, 2020
Keith1776
4 out of 5 stars review

Temp Over 90...

[This review was collected as part of a promotion.] Product: Ortho Weed Clear Ratio: 11 tsp – gal Conditions; Hot, Sunny, Minimal rain during this time frame. One Treatment Observations / opinions. Well, I am sorry to say I was disappointed. But if my post is here, give them credit for being open minded. I was surprised. Then I read some another reviews and see Ortho stated it does not work in temps over 90. Welcome to Texas Summers! Also, I only gave it a week. Looks like I will do another test in the fall and update on results. However, I doubled the ratio (20 tsp – gal) and in 2 days it was dead! So it appears it DOES work in temp over 90 but you may have to increase the strength a bit.

Review from Ortho
Helpful?747HO059CYBM13603804174
Jan 31, 2024
Mariamp
1 out of 5 stars review

DID NOT WORK AS EXPECTED

Purchased on Jan 9th and very little visible results. We bought two gallons so that is would cover all the hardscape driveway etc and we had very little results. I paid someone to spray this for me as I am 71 and now it needs to be sprayed again. VERY DISAPPOINTED. The wand did work but that is all

Review from Ortho
Helpful?747HO059CYBM13603804174
reply from Customer Care

We're sorry to read about your disappointment with Ortho Home Defense MAX Perimeter & Indoor Insect Control RTU and appreciate your feedback. This is a contact pesticide. This product is only labeled for the control of those insects listed on the label. This product will only kill adults and larvae. It will not prevent eggs from hatching or pupa from emerging. You may need to reapply every 1-2 weeks until eggs & pupa have emerged and are in a treatable condition. 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 reach out to us at 866-324-9192 if we can further assist.

Jun 14, 2024
Krittermall
1 out of 5 stars review

Sprayed 3 times. Didn't kill all grass and weeds.

Very disappointed. I sprayed weeds in one bed of dirt and grass to start a new bed. After spraying 3 times over almost 3 weeks, I still have a fair amount of green grass and weeds. UGH! I used the one that was already mixed and had a wand, so I know it wasn't that I didn't put in enough concentrate.

Review from Ortho
Helpful?747HO059CYBM13603804174
reply from Customer Care

We're sorry to read about your disappointment with Ortho GroundClear and appreciate your feedback. This product is not systemic but kills off the top of weeds thoroughly treated at time of application. For annual weeds, especially if young, this will typically kill them. Also if the weed is mature, no matter what the weed, it will be more difficult to control. It is important to use this product when weeds are young and tender. To get the best results plant leaves must be thoroughly and uniformly covered with the spray solution. If the application does not cover the entire plant, the control will be less and a reapplication will be needed. Can reapply as needed. 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 reach out to us at 866-324-9192 if we can further assist.