Free yourself from weeding.

Apply just once around more than 600 perennials, ground covers, shrubs and trees as listed on the product label to block weeds* for six months—guaranteed!

  • Stops weeds from growing before they start
  • Prevents dandelions and 125 other grassy and broadleaf weeds*
  • Flip open the lid and shake to evenly apply

Available Now

Preen Extended Control Weed Preventer is the longest-lasting Preen yet.

Buy Preen Extended Control Weed Preventer now.

Available at these quality retailers:

Farm & Fleet

Learn more about Preen Extended Control Weed Preventer.

Plan ahead so you can enjoy the important things in life!

Weed free as easy as 1, 2, 3.

Apply Preen Extended Control Weed Preventer in the spring for weed control that lasts up to six months—guaranteed! One application blocks dandelions, crabgrass, clover, henbit, spurge, oxalis and many other pesky weeds.*

Preen's jug-handled bottle has a flip-top applicator cap that makes applying it a breeze. Just flip it open and it's ready to use. No mixing, no measuring, no mess.

Tilt the bottle and start shaking to evenly distribute the granules. For use around 600 plants in perennial flower beds; around groundcovers, trees and shrubs; and in xeriscape settings and rock gardens.

Water the treated area to activate the protective weed barrier. For maximum effectiveness, use on top of mulched area.

Our customers say it best.


“I received Preen Extended Weed control about the end of March. It is now May and I haven't seen a weed yet! I like this product a lot better than the weed killer. No ugly brown spots and no weeds!”


“Works great! I used this around my flowers, where I was afraid to cut with the weed eater and it worked wonders. Very easy to use, too. I am also glad it did not have a harsh smell as a lot of weed killers do, this one was not over powering.”


I used Preen Extended Control near the end of March. It’s now May and I haven't seen a weed yet! I prefer this product over a weed killer. With Preen Weed Preventer, you don’t need to pull the weeds and it takes care of the rest! No ugly brown spots and no weeds!

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