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Internet # 304273284

Model # 2164168

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18 lbs. One Lawncare, Covers 5,000 sq. ft. (24-0-6)

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  • 3-in-1 application: halts crabgrass, destroys weeds & feeds lawn
  • Kills dandelions & crabgrass seedlings simultaneously
  • Feeds your lawn for up to 8 weeks
  • View More Details

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Product Details

About This Product

Preen One Lawncare is all you need for weed control in lawns in one easy application. Kill broadleaf weeds and prevent crabgrass, plus feed your lawn, in one time-saving step. Preen One Lawncare will kill over 250 lawn weeds commonly found in home lawns including dandelion, chickweed, thistle and clover, and will prevent crabgrass and other undesirable annual grasses from emerging. Preen One Lawncare also contains a long-lasting, slow release fertilizer that has essential nutrients your lawn needs for 2 months. Apply in spring when weeds are growing, and that's it. You'll get season-long weed control and feeding without the extra work of multiple applications. Eliminate lawn weeds and green your lawn at the same time. For use on established bahiagrass, bermudagrass, buffalograss, fine fescues, Kentucky bluegrass, perennial ryegrass, tall fescue and zoysiagrass.

Highlights

  • Stops crabgrass all season and can be applied up to 4-weeks after crabgrass emerges
  • Kills dandelions and up to 250 other tough lawn weeds as listed, to the root
  • Feeds your lawn for up to-8 weeks with a, 0-phosphorus 24-0-6 formula
  • Do not use on St Augustine grass in Florida, or on dichondra and carpet grass as serious lawn injury will result
  • Easy 1-step application for spring lawn care
  • Covers 5,000 sq ft
  • Return Policy

Product Information

Internet # 304273284

Model # 2164168

Additional Resources

Shop All Preen
From the Manufacturer

Specifications

Dimensions

Coverage Area (sq. ft.)

2500 sq ft

Product Size

18 LB-Pound

Product Width (in.)

12 in

Details

Application Type

Granular

Area of Use

Lawn

Compatible Grass Type

Bermuda, Bluegrass, Centipede, Fescue, Rye, Tall Fescue, Zoysia

Concentrated or Ready to Use

Ready to use

Emergent Type

Pre and Post Emergent

Organic

Non-Organic

Pack Size

1

Returnable

90-Day

Safe For

Not Safe for Kids and Pets

Safe for Edibles

No

Total Coverage Area (sq. ft.)

5000

Weed Type

Annual Bluegrass, Barnyardgrass, Bindweed, Bitter Cress, Black Medic, Bulbous Buttercup, Bull Thistle, Bur Clover, Burweed, Canada Thistle, Chamberbitter, Chicory, Cinquefoil, Clover, Cocklebur, Common Burdock, Common Chickweed, Crabgrass, Creeping Charlie, Dallisgrass, Dandelion, Day Flower, Dead Nettle, Dichondra, Dog Fennel, Dollarweed Lawn Pennywort, English Lawn Daisy, False Dandelion, Field Bindweed, Florida Betony, Florida Pusley, Foxtails, Goosegrass, Hawkweed, Heal-All, Henbit, Horseweed, Knotweed, Lambsquarters, Lespedeza, Mallow, Matchweed, Moneywort, Morning Glory, Mouse-Ear Chickweed, Mugwort, Mullein, Mustard, Narrowleaf Plantain, Pigweed, Plantain, Poison Ivy, Poison Oak, Pokeweed, Prostrate Spurge, Puncture Vine, Ragweed, Red Sorrel, Shepards Purse, Smartweed, Sow Thistle, Speedwell, Spurge, Spurweed, Stinging Nettle, Tansy, Thistle, Virginia Buttonweed, Virginia Creeper, Wild Carrot, Wild Garlic, Wild Onion, Wild Strawberry, Wild Violet, Wood Sorrel

Questions & Answers

Can this product be used in rock bed walkways to kill and prevent weeds?
ByJul 18, 2026
1 Answer | 
Answer This Question

Hello, We do not recommend using PreenOne Lawncare in a rock bed walkway. PreenOne Lawncare is for lawn use only.

By|Jul 20, 2026


    does Preen kill tree seedlings?
    ByMay 26, 2026
    1 Answer | 
    Answer This Question

    Preen One Lawncare may harm tree seedlings and should not be used any where desired. If you are trying to rid of the tree seedlings, we do not have anything specifcally to control them. Thank you!

    By|May 26, 2026


      Can I use on seashore paspalum
      ByMar 3, 2026
      1 Answer | 
      Answer This Question

      Thank you for your question! We do not recommend applying Preen One Lawncare on your seashore paspalum grass.

      By|Mar 6, 2026


        My lawn is mixed st Augustine with Bermuda is this safe to apply to both?
        ByJan 25, 2026
        1 Answer | 
        Answer This Question

        Preen One Lawncare can be used with Bermudagrass however, it cannot be applied to St. Augustinegrass as damage/injury may occur. Thank you!

        By|Jan 26, 2026


          Can you put this out in the winter time to kill Burrweed?
          ByJan 12, 2026
          1 Answer | 
          Answer This Question

          Thank you for your inquiry! As long as your weeds are up and actively growing, you can apply the Preen One Lawncare. Apply to a wet/damp lawn followed by no rain or water for 24-48 hours. After that time period a rain or watering must occur. Thank you, Customer Service

          By|Jan 12, 2026


            Will this kill centipede grass?
            ByJan 12, 2026
            1 Answer | 
            Answer This Question

            Thank you for your inquiry! Yes you can apply Preen One Lawncare to Centipedegrass. Thank you, Customer Service

            By|Jan 12, 2026


              How can it do Pre emergent, Weed Kill, and fertilize in one spread? Pre emergent and fertilize I understand. But doesn't established weed kill need a second spread? Any CUSTOMERS care to comment on its effectiveness?
              ByApr 20, 2025
              1 Answer | 
              Answer This Question

              Hi there! Our product is formulated different than others on the market due to the active ingredients used. This product will prevent crabgrass and other grassy weeds, fertilize, and kill actively growing label listed broadleaf weeds all at the same time. Our pre-emergent herbicide has slight post-emergent properties so it will kill any small crabgrass up to 4 tillers and small seedlings of the grassy weeds listed if germinated. Please contact us at 1-800-233-1067 for any further assistance. Thank you!

              By|Apr 21, 2025


                Safe for kids and animals?
                ByMar 3, 2025
                1 Answer | 
                Answer This Question

                Pets can enter the treated area once it has dried from the first irrigation. According to the product specifications, this product is "Not Safe for Kids and Pets".

                By|Jun 4, 2026

                (1)

                Viewing 1-8 of 101

                Customer Reviews

                4 out of 5

                • 4 out of 409 reviews
                • 86% recommend this product
                Filter by:
                Showing 1-10 of 409 reviews
                Doesnt work
                I have put down this product over the past 4 years and done all the steps- aerate, dethatch, mow high, fertilize, over seed, and still I am overwhelmed with so many terrible weeds throughout the entire property- wild violet, dandelion, clover, creeping charlie, wild strawberry, plantain, and on it goes. Waste of hours of labor and waste of money.
                by
                  Not effective at all
                  I have tried this just as described and seems to have zero effect, still have a wide range of weeds growing just fine throughout lawn. Super frustrating to keep putting money and effort out for no return.
                  by
                  Response from Preen Customer SupportApr 14, 2025
                  We apologize for the unsatisfactory results with our Preen One Lawn Care! This product is applied typically a few days after the second mowing, to a damp lamp, followed by no irrigation for 1-2 days. Weeds begin to die off within 10-14 days. Please contact us at 1-800-233-1067 so we may further assist you. Thank you! preen
                    Does not work
                    Does not kill your weeds and there is no refund if it does not work
                    by
                    Response from Preen Customer SupportMar 13, 2023
                    Preen One Lawncare is a pre-emergent for crabgrass and other grassy weeds, a post-emergent for up and actively growing broadleaf weeds, and a fertilizer all in one. This product is to be applied when your broadleaf weeds are up and actively growing, typically after the first or second mowing. This product is to be applied to a damp lawn followed by an irrigation 24-48 hours after. We do stand behind our products when applied accordingly. Please contact us for further assitstance at 1-800-233-1067 Monday through Friday, 8AM-5PM EST. Thank you! preen
                      kills grass too
                      I wish i had just keep the weeeds. My lawn in an embaressment
                      by
                      Response from Preen Customer SupportSep 9, 2019
                      Preen One Lawncare is a unique and wonderful product when applied as directed. So we may further assist please contact us at customerservice@lebsea.com. Thank-you! preen
                        • Recommended
                        1 found this review helpful
                        I had high hopes. 2nd 8wk application killed grass
                        I reseeded my lawn by the book last fall (Oct 17) using a slit seeder and Titan Tall fescue seed. By March/April my grass was amazing, the best in the neighborhood. Thick green and lush! I applied Preen One in March ( I am in Charlotte NC) to take advantage of its pre-emergent as well as existing weed control. The few weeds that I had were gone within a couple of weeks and the grass looked great. I had to mow it twice a week. Then 8 wks later I applied Preen one again, as recommended, and as directed. Within two weeks large patches of my grass were turning brown. Now it looks terrible. We have had plenty of rain, and I cannot fathom any other reason for the dead grass. I am very disappointed after spending so much time and money this year to finally have a great lawn.
                        by
                        Response from CSJun 8, 2018
                        Thank you for your inquiry! We apologize that Preen One Lawncare did not perform as you expected. Preen One Lawncare this product contains three products in one (no need for three separate products). Following is some helpful information on this product: when applied as label directed, it will help to prevent crabgrass seeds from germinating, plus, it will help to kill young crabgrass plants (up to approximately 4 weeks old, and less than 2" in diameter), and, it will help to kill only the listed broadleaf weeds (ie: dandelions) that are present at application time (it does not prevent new broadleaf weeds from appearing), that are young/actively growing. Plus, it feeds your lawn for up to 2 - 3 months. Apply to a non-stressed qualifying and established lawn in mid-to-late late spring when there is constant warm soil temperatures, when as many as the listed broadleaf weeds are visible and young/actively growing (keep in mind that this product does not prevent new ones from coming up). No mowing 3 days prior to application and no mowing 3 days after application. Apply to a wet lawn (ie: morning dew) that also has good warm soil moisture, and, no rain and/or water for at least 24 - 48 (preferably 48 hours) hours after application; at which time a thorough rain and/or watering should occur. Also, you mentioned plenty of rain in your area which can cause your lawn to have fungus and mold issues. We would recommend contacting your local county cooperative extension for advice on the brown spots on your lawn.
                          My lawn is much thicker and greener with no weeds and I am very well satisfied. Nickname please d...
                          My lawn is much thicker and greener with no weeds and I am very well satisfied. Nickname please do not use your own name
                          by
                          • Verified Purchase
                          • Recommended
                          Easy lawn weed control
                          [This review was collected as part of a promotion.] Got this few weeks ago haven't had a chance to apply it to my grass due to snow and rain almost every other day. It was simple to apply easy to see the blue and white particles spread and the instruction where straight to point on how to use.
                          by
                            • Recommended
                            Powerful product
                            [This review was collected as part of a promotion.] I always buy preen products for my flower beds so buying preen for my lawn was a no brainer. I was very excited and impressed how there is 3 different lawn cares in one product which makes it less work for me. It stops crab grass, kills weeds and feeds the lawn all in one application. It’s always so hard to find the time to do all the different steps to my lawn so this makes it very simplified. This product makes taking care of my lawn so much more easier.  
                            by
                              • Recommended
                              So Easy to use
                              [This review was collected as part of a promotion.] It was easy to follow the directions on the bag of Preen One Lawncare. I used my spreader to apply it. It spread evenly and did not clump up. I love the fact that it is a weed killer and fertilizer in one. I also like the fact that after it rains or you water, 24 hours and it is safe for pets. It is still early spring here in Illinois, so I will have to update this review at a later time. My 5 star review is based on past use of Preen One and how effective it has been and how easy it is to apply. I normally have an issue with Dandelions and Crabgrass. In the past Preen One has worked great keeping them away. I look forward to a greener lawn!
                              by
                                • Recommended
                                Looking Forward to a Clean, Green Lawn
                                [This review was collected as part of a promotion.] I've used Preen products on my lawn for years, as a cost-effective alternative to other, needlessly-more-expensive options. Compare the ingredients of Preen to others, you'll see for yourself that Preen is a clear winner in cost and action. Preen always gives my lawn the look I want -- green and weed-free. I'm giving Preen One an early four stars, based on past Preen results. We're still in the colder months in PA; so, I haven't been able to apply One yet, as it's a post-emergent (and not a pre-emergent, like most lawn-care products), which is pretty exciting given, despite best efforts, you're bound to see a weed or two on your lawn (especially pesky dandelions, from seeds that blow in from your neighbors' lawns), even with treatments. Based simply on the Preen name and reputation I've come to expect during my 20+ years of lawn-care experience, I have little doubt One will work as advertised -- i.e., handling the host of lawn invaders shown in the pics provided.
                                by
                                  • Recommended
                                  Showing 1-10 of 409 reviews

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                                  Product Snapshot

                                  Must-have for anyone looking to kill weeds, prevent crabgrass, and feed their lawn with ease.
                                  Ideal for homeowners looking for weed, crabgrass, and feed, ensuring a thick, green lawn.

                                  Coverage Area

                                  5000 sq ft
                                  4000 sq. ft.

                                  Active Ingredients

                                  Application Method

                                  Granular
                                  Granular

                                  Residual Control

                                  8 weeks

                                  Rainproof Protection