What does Roundup® Landscape Weed Preventer Prevent?

If you’re ready to stop pulling weeds and start preventing them.

What does Roundup® Landscape Weed Preventer Prevent?

If you're ready to stop pulling weeds and start preventing them, you've come to the right place. Roundup® Landscape Weed Preventer puts a stop to over 40 types of grassy and broadleaf weeds, so you can use your time for other, more enjoyable pursuits.

America's Least Wanted Weeds

Any of the weeds in your landscape beds can cause a headache, but these 6 suspects are among those most likely to pop up and ruin your day.


Recognizable by its 3-part leaves and round, white or pink flowers, clover can be found throughout the country. This perennial weed (meaning it comes back year after year) is a member of the legume family, so it feeds itself by producing its own nitrogen. If there’s a moist, undernourished area of your yard, chances are you’ll find clover there.


An annual grassy weed that sprouts in late spring, foxtail loves sunny spots and will quickly grow big enough to shade out some of the small plants in your landscape. The damage doesn’t end there, either: The roots of all 3 foxtail varieties (giant, green, and yellow) may also produce chemicals that can actually harm nearby plants.


Also called silver crabgrass, this annual grassy weed isn’t actually crabgrass at all. It starts to poke its head out of the ground in spring, but chances are you won’t notice it until summertime. At that point, you’ll start seeing silver- or white-centered rosettes of low-growing, flattened stems that can spread to be over 2 feet wide if you make the mistake of ignoring them.


As you might guess from the name, chickens love to eat this annual weed, which looks a lot like both dead nettle and ground ivy (a.k.a. Creeping Charlie). This invader has square stems, rounded leaves with scalloped edges, and small lavender flowers that bloom in the spring. You’ll often find it under trees and shrubs where other plants can’t quite get a foothold.


Though it’s edible when it’s young, common lambsquarter is a fast-growing annual weed that can cause much more trouble than it’s worth. Older plants are easy to spot, with leaves that are green on top and grayish-white underneath. A single plant has the unfortunate ability to produce thousands of seeds, so you need to make sure that doesn’t happen.


Like lambsquarter, you can eat purslane. While you’ll notice this annual weed starting to infiltrate your landscape beds in the summer, don’t be fooled into thinking a dry spell will wipe it out. Because it’s a succulent weed (meaning it stores water in its leaves), it can tough out periods of drought even while all of its plant neighbors are suffering.

And The Rest of The Naughty List

Roundup® Landscape Weed Preventer doesn't just stop the weeds on the Most Wanted list, but can also halt a bunch of other broadleaf and grassy weeds, including:

  • Barnyardgrass
  • Bluegrass, annual
  • Crabgrass, large
  • Crabgrass, smooth
  • Crowfootgrass
  • Itchgrass
  • Johnsongrass (from seed)
  • Junglerice
  • Lovegrass (from seed)
  • Panicum, browntop
  • Panicum, Texas
  • Sandbur, field
  • Signalgrass
  • Sprangletop, Mexican
  • Sprangletop, red
  • Witchgrass
  • Woolly cupgrass
  • Lawn burweed
  • Carpetweed
  • Chickweed, common
  • Chickweed, mouseear
  • Hop Clover
  • Cudweed
  • Evening primrose
  • Fiddleneck
  • Filaree
  • Knotweed, prostrate
  • Kochia
  • Pigweed
  • Puncturevine
  • Pusley, Florida
  • Rocket, London
  • Shepherdspurse
  • Smartweed, Pennsylvania
  • Speedwell, corn
  • Spurge, annual
  • Spurge, prostrate
  • Woodsorrel, yellow
  • Velvetleaf (Buttonweed)