Do you mix water with Ortho Ground Clear?

If you like Round-Up, you’ll love Ortho GroundClear Concentrate, because it combines the main ingredient in Round-Up – glyphosate – with a much smaller concentration of an equally deadly herbicide, imazapyr. Both herbicides are non-selective, which means they will kill anything with which they come in contact, so it’s important to use GroundClear properly.

Glyphosate is a post-emergent herbicide and must be absorbed through the leaves, while imazapyr is both pre- and post-emergent and can be absorbed both through the leaves and the roots. Both bind to the soil and can potentially enter the groundwater, but if you use GroundClear according to the manufacturer’s recommendations, there’s little chance of environmental consequences, although the area you spray won’t support plant growth for at least a year. That’s a good thing when it comes to weed control but not so good for your garden.

Where to Use GroundClear and Where Not to Use It

GroundClear is intended to kill weeds that grow in unwanted places, such as:

under decks; along curbs and fence lines; in rock gardens and graveled areas; and along roads and walkways.

It is not intended for use as a weed killer for your garden and should not be used where desirable plants are growing. Moreover, it should never be used where pets or people could come into contact with it or be affected by the spray.

The herbicides in GroundClear can be carried by rain runoff, so you should never use this product on a slope, nor should you use it on a fence line if desirable vegetation is growing on the other side of the fence. Do not spray it on your lawn, near fruit, vegetables or any other consumable growth or over tree roots.

When and How Often to Use GroundClear 

Because it contains glyphosate, which interferes with the growth process, GroundClear works best on actively growing vegetation, and the best time to apply it is in early spring, when growth is most vigorous. This is not the ideal product to use as a weed preventative, but if you do use it on areas in which no growth is visible, the second ingredient, imazapyr, will enter the soil and prevent growth for up to a year.

In areas of heavy rainfall, you may need to apply GroundClear more often than every year. In such areas, the manufacturer recommends spraying it every six to eight months. In arid regions without much rainfall, a yearly application should be sufficient to keep weeds under control.

How to Mix and Use GroundClear

GroundClear is a concentrate, so you have to mix it with water in the proportion of 24 fluid ounces per gallon of water, which is about a 20 percent mixture. If you want to fill a 20-oz. spray bottle, you need 4 ounces of GroundClear, and since it comes in 32-oz. containers, one container is enough to fill your spray bottle eight times. If you have a large area to spray, you’ll probably want to buy GroundClear in a 1- or 2-gallon container, which is enough to make 5 to 10 gallons of mixture.

Spray GroundClear in full sun on a windless day, taking care to control the overspray. Remember that the spray will kill any vegetation with which it comes in contact.

Be Environmentally Safe

To apply GroundClear, choose a dry day with no rain in the forecast for at least 24 hours. If you use it just before a rain, runoff may carry it into drainage ditches, and it could potentially end up in the groundwater. For the same reason, avoid watering the area that you spray for at least 24 hours. Always keep the sprayer pointed downward while it’s discharging to avoid inhaling any of the product or having it become airborne.

  • Bugs

    • Products

    • Essential Oils

    • Tips & Solutions

    • Do you mix water with Ortho Ground Clear?

      Do you mix water with Ortho Ground Clear?

    • Do you mix water with Ortho Ground Clear?

      Do you mix water with Ortho Ground Clear?

  • Garden

    • Products

    • Tips & Solutions

    • Do you mix water with Ortho Ground Clear?

      Do you mix water with Ortho Ground Clear?

    • Do you mix water with Ortho Ground Clear?

      Do you mix water with Ortho Ground Clear?

  • Weeds

    • Products

    • Tips & Solutions

    • Do you mix water with Ortho Ground Clear?

      Do you mix water with Ortho Ground Clear?

    • Do you mix water with Ortho Ground Clear?

      Do you mix water with Ortho Ground Clear?

  • Pollinator Promise

  • Purpose

  • Help Center

Free shipping on all orders over $35!

Overview & Benefits

Ortho® GroundClear® Weed & Grass Killer2 is a powerful way to quickly clear weeds like dandelions, chickweed, nutsedge, and moss as well as unwanted grasses from patios, walkways, landscape beds, and gardens. You'll start to see results in just 15 minutes with weeds going from green to brown in under 2 hours. You can apply any time of the year when the winds are calm and weeds are small (3 inches tall or wide) and actively growing.

Mix the Ortho® GroundClear® Weed and Grass Killer2 concentrate with water and apply with a tank sprayer. Just 1 pint of concentrate mixed with 7 pints of water is enough to treat up to 300 sq. ft. For hard to control perennial weeds or extremely dense weed growth, mix 1.2 pints (19.2 fl. oz.) of the product with 6.8 pints of water to treat up to 300 sq. ft. Plus, Ortho® GroundClear® Weed & Grass Killer2 is OMRI listed. Difficult to control weeds may require more than one application for complete control.

Pairs Nicely With

Do you mix water with Ortho Ground Clear?

How to Use Ortho® GroundClear® Weed & Grass Killer2 Concentrate

Key Features

  • Learn
  • Product Specs

Overview

  • Applying Ortho® GroundClear® Weed & Grass Killer2 is a powerful way to quickly clear weeds like dandelions, chickweed, nutsedge, and moss, plus unwanted grasses from patios, walkways, landscape beds, and gardens
  • RESULTS IN 15 MINUTES: This weed and grass killer acts on contact, with results starting to show in just 15 minutes and most weeds turning brown in only 2 hours
  • USE WHERE WEEDS GROW: Control weeds cluttering up your gardens, landscape beds, walkways, driveways, sidewalks, and under trees; plus, it's OMRI Listed
  • APPLY WITH CONFIDENCE: People and pets may enter the treated areas after spray has dried; and you can plant new flowers, trees and shrubs in the treated areas once the application dries (upon drying)
  • MAXIMUM COVERAGE: In a tank sprayer mix 1 pint of concentrate with 7 pints of water to treat up to 300 sq. ft. 

How to use

  • Apply using standard methods of liquid herbicide application. 
  • No shaking or agitation is required. 
  • Dilution must be in accordance with label instructions. 
  • Do not apply this product through any type of irrigation system.
  • To ensure satisfactory control, plant leaves must be thoroughly and uniforming covered with the spray solution.

Where to use

Use on walkways, driveways, under trees, in landscape beds* and gardens*. (*Apply directly to weeds.)

Where not to use

For outdoor use only. Do not spray plants or grasses you like--they will die. Not recommended for spot weed control in lawns. Do not allow treated weeds to come in contact with desirable plants until spray has dried.

When to apply

Apply at any time of the year when weeds are small (3 inches tall or wide) and actively growing. Apply when the winds are calm. Rainproof in 2 hours.

How often to apply

Difficult to control weeds may require several applications for complete control.

Weeds

Broadleaf Weeds:
Algae
Bittercress, hairy 
Chickweed, common 
Chickweed, mouse-ear 
Cocklebur, common
Corn Spurry
Cudweed, purple 
Groundsel 
Lambsquarters, common
Liverwort
Marestail or Horseweed Rosettes
Morningglory, annual
Moss
Mustards
Oxalis or Woodsorrel
Pansy, wild
Plantain 
Pigweed, smooth and redroot
Mallow, roundleaved
Moneywort
Shepherdspurse
Sorrel, sheep
Spurge, spotted
Field pennycress
Velvetleaf

Grass and Other Weeds: 
Bentgrass, colonial 
Bluegrass, annual
Crabgrass, large 
Fescue, creeping red
Fescue, hard
Nimblewill
Onion, wild
Ryegrass, perennial
Star-of-Bethlehem

Weeds Moderately Difficult to Control*:
Bermudagrass (Wireweed)
Bindweed, field
Dandelion
Nutsedge, yellow
Ragweed, common
(*Use 1.2 pints per gallon for control or suppression)

Our Environment

Ortho® & Your Environment 


Your yard is a place to enjoy. That's why Ortho products are designed with care to provide effective solutions to weed problems. Please follow instructions for appropriate usage, storage and disposal.

Coverage area

  • 32 oz. up to 1,200 sq. ft.
  • 64 oz. up to7,500 sq. ft.

Category

Cautions

Causes substantial, but temporary eye irritation. Do not get in eyes or on clothes. Wear goggles. Harmful if inhaled. Avoid breathing spray mist. Causes moderate skin irritation. Avoid contact with skin or on clothing. Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum or using tobacco. Remove and wash contaminated clothing before reuse.

Disposal Methods

Non Refillable 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.

Kids & Pets

Do not allow children and pets to enter application area until sprays have dried.

Product Label

This is not the product label. Always read and follow the product label before use.

Safety Data Sheets can be found at scottsmsds.com

Need an answer to a product question?  Scotts experts are always available by email and phone in our Help Center.

Special Instructions

Store container in a cool place until ready for use.

Watering Tips

Do not water within 2 hours after application.

What to Expect

Weeds will turn from green to brown within 1-2 hours.

Mixing Instructions

Fill sprayer tank with half the required amount of water, add the full amount of Ortho® GroundClear® Weed & Grass Killer° then fill the sprayer tank with the remainder of the water required.

1 pint (16 fl. oz.) per gallon of spray is recommended for most weed control situations and based on the results.

1.2 pints (19.2 fl. oz.) per gallon of spray is the maximum labeled rate and may be used for hard to control perennial weeds or extremely dense weed growth.

Active Ingredients

Ammonium Nonanoate: 40.0 wt.%

Ratings & Reviews

Whether you are just starting out, maintaining or troubleshooting, you'll find advice and answers here for all your insect and weed control needs.

Do you mix water with Ortho Ground Clear?

How do you mix Ortho Ground Clear Super concentrate?

Mixing Instructions.
Add 10 fl. oz. (1-1/4 cups) to 1 gallon of water to treat established and difficult to control weeds,.
Add 5 fl. oz. (1/2 cup + 2 tablespoons) to 1 gallon of water for weed control..

When should you apply ground clear?

Apply to bare ground or when weeds are actively growing. If weeds are taller than 6 inches, mow or cut down weeds and remove debris before treatment. For best results apply on a sunny day with temperatures above 600 F.

How long does Ortho Ground Clear stay in soil?

Do not use before planting lawns, fruits, vegetables, flowers, or other plants because [GroundClear RTU] [Product Name] remains active in soil for up to one year.

How much Ortho Ground Clear Super concentrate per gallon?

For weed control, add 5 fl. oz. (1/2 cup + 2 tablespoons) to 1 gallon of water. Spot treat or spray uniformly over 350 sq.