Ratings may include incentivized customer reviews.
What Customers Are Saying
The product appears to have mixed effectiveness in controlling weeds, with some customers reporting it worked well to kill weeds, especially dandelions, while others found it ineffective. Proper application according to instructions seems important for achieving desired results. The product may work better on certain weed types than others. Overall, customer experiences are quite varied, with both positive and negative reviews.
Customer review summary generated by AI, including incentivized reviews.product did exactly what it said it would do.
Would Recommend[This review was collected as part of a promotion.] I tried this product and was soooooo satisfied, I told family and friends about it who then tried it also and told others.
From preen.com
Large sized bag
Would Recommend[This review was collected as part of a promotion.] My lawn is large and out of control. With all the rain this spring, I feel like I live in a tropical forest.
From preen.com
GREAT FOR CONTROLLING WEEDS
Would Recommend[This review was collected as part of a promotion.] I purchased this a month ago. I was looking for something to control the weeds in my yard. This product did the trick. No more weeds. I had tried several other products but none of them worked. Preen weed control is the best.
From preen.com
Good bang for the buck
Would Recommend[This review was collected as part of a promotion.] I looked closely at what it is reported to do and compared to other products and found this to be the best bang for the buck. I have to apply it twice about 2 weeks apart to clear my lawn of the "undesirables".
From preen.com
WEED FREE
Would Recommend[This review was collected as part of a promotion.] Lawn looks healthy and is WEED FREE. I thought I would never see the day!!! We are extremely happy with the product and will purchase again.
From preen.com
Works very Good!
Would Recommend[This review was collected as part of a promotion.] This products does what it says!, Worked very good on my various kinds of south Florida weeds.
From preen.com
Definitely Kills Dandelions
Would Recommend[This review was collected as part of a promotion.] We bought this Preen product three weeks ago. We'd returned from a long trip to find our entire yard awash in dandelions. It was a virtual sea of yellow. My husband generously fed them Preen and today there is not one yellow "flower" out there. Of course, he has plenty of dead ones to deal with, but the Preen certainly lived up to its promise to kill them.
From preen.com
DOES THE JOB
Would RecommendI PUT THIS PRODUCT ON MY DANDALLION INFESTED LAWN AN D WITHIN 2 WEEKS + ALL GONE!
From preen.com
Kills weeds. Beautiful lawn!
[This review was collected as part of a promotion.] I purchased and applied as directed sand after just a week, we saw results. A month later and our lawn is healthier, virtually weed free, and we can't stop telling people when they ask about Preen. It works! Great product! Great price!
From preen.com
Perfect weed control
Would Recommend[This review was collected as part of a promotion.] We put this on our lawn it did great job of weed control
From preen.com
Weed Control
Would Recommend[This review was collected as part of a promotion.] Last year I put this product down on my lawn and was surprizesd how fast it worked. In a couple of weeks about 80 % of the weeds were gone.
From preen.com
Dandelions and Crabgrass Be Gone!
Would RecommendEach year I am faced with trying to control a tons of dandelions and crabgrass. I found if I used Preen Weed Control early in the season and water it in properly, it stops the weeds before they ever get to take off.
From preen.com
Kills weeds
[This review was collected as part of a promotion.] If I just would remember to use it, it would work great. Use in the past and have excellent results.
From preen.com
Works the Best!
Would Recommend[This review was collected as part of a promotion.] After years and years of trying to find the best weed control product, this is it! We have used this the last couple years and it works great! It is priced well, has great coverage and kills those pesky dandillions! We love it!
From preen.com
Did not kill anything
Would Not RecommendI put down 6 20lb bags. It has been three weeks now & not a single weed has died. Looked for warranty but there does not seem to be one
From preen.com
Product too wet for application
Would Not RecommendProduct would not fall through my Earthway Rotory Spreader for application due to the product being very wet out of the bag. The bags were intact, no openings. The spreader was set at "16" per the instructions. The product would not fall through my Earthway Rotory Spreader for application even at the widest setting. When I purchased the two bags, they were both "hard as bricks" That should have been my first clue as to the impending trouble to come. Now I can not even return the product for a r...
From preen.com
We are sorry to hear about this! Depending where the product was stored, moisture seeped into the bags and have caused them to become 'brick hard'. So... Read More
What am I doing wrong?
Would Not RecommendI'm an avid gardener, so I use Preen's pre-emergent herbicide in my garden every year with good success, and thought I'd try this product to help with the lawn weeds. Either this product does not work as advertised, or I'm doing something horribly wrong. I mowed the lawn, then applied the product the following morning when the grass was wet with dew (enough that my shoes got wet after a few passes). I could see the granules on the leaves of many of the weeds (see photo). We did not receive a...
From preen.com
Thank you for your support of our products. I apologize that Preen Lawn Weed Control did not meet your expectations. We do stand by our product 100%. ... Read More
Herbicide, not a weed preventer
Would Not RecommendI bought this because I thought preen made strictly weed prevention products. As I put this in the broadcast spreader I. Smelled the strong chemicals but thought since this was Preen I must just not be used to how it smells. After applying I feel ill and only then did I realize this is just another chemical herbicide. In short, I trusted the Preen name and did not do enough research and now have a lawn covered in chemicals.
From preen.com
Don't waste your money
Would Not RecommendI bought a bag, followed the instructions and it did little to nothing. Can't blame rain. This stuff stinks. If it wasn't such a pain, I bring a claim in small claims court to get my money back. don't waste your money. Buy weed and feed or spray with a hose end sprayer.
From preen.com
Works amazingly well!
Would RecommendWe purchased this in the early spring for the first time. We use to use a lawn care service and were not completely satisfied. So we decided to do it ourselves. The Weed Control really helped to significantly reduce our weed issue. I feel like our lawn looks so so much better now.
From preen.com

We are sorry to hear about your dissatisfaction with our Preen Lawn Weed Control. This product is to be applied once all the weeds are up and activel... Read More