Roundup 4385106 Landscape Weed Preventer for Up To 6 Months, 5.4 Lb


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SKU: 11757939
MFG: 4385106


Don't Pull Weeds and Grasses, Prevent Them! Introducing Roundup® Landscape Weed Preventer which prevents weeds and grasses for up to 6 months. It works by forming a weed barrier to stop weeds before they start. For best results, apply directly to soil around plants in Spring before weeds germinate and before mulching. Won't harm your desirable plants and flowers when used as directed! The easy to use built-in applicator provides even coverage. Now you can save time and energy with Roundup® Landscape Weed Preventer. A simple step towards a weed free landscape and garden!

  • Size: 5.4 lb
  • Prevents weeds and grasses for up to 6 months
  • Creates a weed barrier that stops weeds before they grow
  • Easy to use applicator provides even coverage
  • Won't harm desirable plants
  • Built in applicator.

How to Use:

  • Sprinkle around plants at a rate of 3/4 oz. (2 Tbsp.) per 10 sq. ft.
  • Activate product by lightly watering-in. This product may be raked into the top inch of soil before watering-in.

When to Apply

For Established* Trees, Shrubs, Perennials, Ground Covers, Ornamental Grass, Bulbs:

  • Apply to soil around plants in Spring before weeds germinate and before mulching.
  • Wash granules from plants and activate product by lightly watering-in.
  • Apply once every 12 months.

For Bedding Plants:

  • Apply after planting and watering the area to pack soil around roots.
  • Wash granules from plants and activate product by lightly watering-in.
  • Apply once every 12 months.

* Note: Established plants are those that have been planted for more than 2 weeks.

How Often to Apply

  • Once Every 12 Months.

Where to Use

  • Annual Flower Beds & Around Established Trees, Shrubs, Perennials, Ground Covers, Ornamental Grass, Bulbs

Where Not to Use

This product is not for use on lawns or vegetable gardens.

  • Do not use when planting seeds.
  • Do not use on lawns.
  • Do not treat plants grown for food or feed.

Coverage Area

  • 5.4lb covers 1000 sq. ft.

Kids & Pets

  • Do not apply this product in a way that will contact any person or pet, either directly or through drift.  Keep people and pets out of the area during application.  Do not allow people and pets to enter the treated area until dusts have settled.  Do not enter or allow others to enter treated areas until watering-in is complete and the soil surface is dry.

Our Environment

  • This pesticide is toxic to fish. Runoff from treated areas may be hazardous to aquatic organisms in neighboring areas. To protect the environment, do not allow pesticide to enter or run off into storm drains, drainage ditches, gutters or surface waters. Applying this product in calm weather when rain is not predicted for the next 24 hours will help to ensure that wind or rain does not blow or wash pesticide off the treatment area. Sweeping any product that lands on a driveway, sidewalk, or street, back onto the treated area of the lawn or garden will help to prevent run off to water bodies or drainage systems. In case of spills, either collect for use or dispose of properly.

What It Controls


  • Grass Weeds: Barnyardgrass; Bluegrass, annual; Crabgrass, large; Crabgrass, smooth; Crowfootgrass; Foxtail, giant; Foxtail, green; Foxtail, yellow; Goosegrass; Itchgrass; Johnsongrass (from seed); Junglerice; Lovegrass (from seed); Panicum, browntop; Panicum, fall; Panicum, Texas; Sandbur, field; Signalgrass; Sprangletop, Mexican; Sprangletop, red; Witchgrass; Woolly cupgrass
  • Broadleaf Weeds: Burweed, lawn; Carpetweed; Chickweed, common; Chickweed, mouseear; Clover, hop; Cudweed; Evening primrose; Fiddleneck; Filaree; Henbit; Knotweed, prostrate; Kochia; Lambsquarters; Pigweed; Puncturevine; Purslane; Pusley, Florida; Rocket, London; Shepherdspurse; Smartweed, Pennsylvania; Speedwell, corn; Spurge, annual; Spurge, prostrate; Woodsorrel, yellow; Velvetleaf (Buttonweed)


  • Make sure newly planted areas have been watered and soil is packed around roots of desirable plants before applying this product.
  • Keep product off of plant leaves. If product is applied to the plant leaves, rinse the leaves with water.
  • Avoid unintentional contact of granules with stone, wood, or other porous surfaces as staining may occur. Sweep immediately to avoid staining. If granules are crushed into surface, rinse thoroughly.
  • Unusually cold, excessively wet, or hot and dry conditions that delay germination or extend germination over a long period of time can reduce weed control.
  • To prevent possible staining to unintended surfaces, ex.: concrete, stone walks, vinyl surfaces, etc., sweep up stray granules as soon as possible.
  • Not for use on edible fruit, vegetables or herb areas.


  • Shaker Bag

Active Ingredients

  • 1.71% Pendimethalin

Disposal Methods

  • PESTICIDE STORAGE: Store in a dry place for your next application. Product can be used until container is empty.
  • PESTICIDE DISPOSAL AND CONTAINER HANDLING: Nonrefillable container. Do not reuse or refill this container.

If empty: Place in trash or offer for recycling if available.

If partly filled: Call your local solid waste agency for disposal instructions. Never place unused product down any indoor or outdoor drain.

Using with Other Products

  • This product prevents weeds from germinating. It does not kill existing weeds.  For best results with existing weeds in your garden and landscaped beds, use Roundup® Weed & Grass Killer III.

Watering Tips

  • After application, wash granules from plants and activate product by lightly watering-in.

What to Expect

  • This product prevents most weeds from germinating for up to 6 months in flower beds and around ground covers, trees and shrubs.