Just one easy application leaves your lawn weed-free, worry-free, and one-derful

Buy Preen One Lawncare now.

Available at these quality retailers:

ONLINE-ONLY PURCHASE(Not available in stores)

Blocks Crabgrass,
Kills Dandelions and 250 weeds.* 

For a
better-looking lawn.

ONE easy step = three essential lawn treatments.

Preen One lawncare does it all with ONE application. First, it targets crabgrass seeds, stopping crabgrass from growing. Second, it kills dandelions and 250* of the toughest weeds, right down to the root. Third, its slow-release nitrogen formulation feeds the lawn for up to eight weeks. Three essential treatments for a beautiful lawn in ONE application. 

See why Preen One Lawncare makes it easy to have a great lawn. 

Our customers say it best.

“I applied this two months ago and my lawn has never looked better. The grass is thick and healthy, and I haven’t seen a single weed.”


“This is the second year I have used Preen lawn products on my yard and the results are amazing. Compared to our neighbors (who use expensive lawn services), our lawn is fuller and greener.” 


“I love that our lawn is free of dandelions and the neighbors’ yards are full of them. This is simple to use and the results are fantastic.”


This year, spend more time enjoying your lawn and less time working on it.

Preen One Lawncare is different.

Preen One is not your typical weed and feed. That’s because typical weed and feeds don’t prevent crabgrass—you have to buy and apply another product. Preen One is different. Because it combines proven crabgrass prevention with aggressive weed control and slow release feeding—all in ONE application. The result? A beautiful, weed-free lawn. 

When to apply? You’ll KNOW when you MOW!

Preen One is different. So is the time of application. Here’s why: In addition to preventing crabgrass, Preen One provides post-emergent crabgrass control to effectively kill crabgrass up to four weeks after weed seedlings emerge from the soil. Apply Preen One in the early spring after the second or third mowing for maximum effectiveness and you’ll have a great start to a weed-free lawn.

For use on these established grass types:

  • Kentucky Bluegrass
  • Perennial Ryegrass
  • Fine Fescues
  • Tall Fescue
  • Bahiagrass
  • Bermudagrass
  • Buffalograss
  • Zoysiagrass


  • St. Augustinegrass
  • Dichondra
  • Carpetgrass
  • Colonial Bentgrass
  • Turfgrass where desirable clovers are present

Serious lawn injury will result

Preen One Lawncare is formulated to provide control of annual grasses and certain broadleaf weeds* commonly found in home lawns such as: Crabgrass, Dandelion, Dollarweed (Pennywort), Henbit, a variety of Clover, a variety of Thistle, Creeping Jenny (Creeping Charlie) , Chickweed and Plantain. 

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