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Preen Vegetable Garden Organic Weed Preventer

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Enjoy a weed-free vegetable garden without all the work. Preen Vegetable Garden Organic Weed Preventer is the organic way to keep weeds from sprouting!

Use the organic weed control in your fruit, vegetable, herb, and landscape beds anytime during the growing season to save time from back-breaking weeding. Preen Vegetable Garden Organic Weed Preventer is formulated to control some of toughest weeds, like clover, bluegrass, crabgrass, foxtail, lambsquarters and plantain. Because it's 100% organic, you don't have to worry.

Just sprinkle around established vegetables, herbs, and fruits once a month to prevent weeds from returning to your garden. Children and pets can play in the area immediately after application.

Where to buy · View product label (PDF)

Application

How to Apply

Sprinkle Preen Vegegtable Garden Organic Weed Preventerevenly over the entire soil surface, at the rate of 5 lbs. per 250 sq. ft. If you choose, you can use twice the recommended rate for even better control with no fear of burning your plants. Rake lightly into the soil then immediately water the top
1 – 2 inches of soil to activate the product.

Afterwards, do not water for at least 2 – 3 days. If excessive rain occurs, reapplication may be necessary.

When to Apply

Apply Preen Vegegtable Garden Organic Weed Preventer anytime during the growing season around established vegetables, herbs, and fruits. Since this product does not kill existing weeds, you must first remove any that have already begun to grow. By applying Preen Vegetable Garden Organic Weed Preventer as early as possible, you can eliminate the need for hand weeding. Reapply every 4 – 6 weeks.

Since Preen Vegegtable Garden Organic Weed Preventer only inhibits sprouting seeds, it can be used with confidence around established plants. However, do not apply on newly seeded areas. When your vegetable sprouts have true leaves and are 2 – 3 inches tall, it is safe to apply this product even up to the day of harvest.

This is not the product label. Always read and follow directions on the product label. Use only as directed.

FAQ

Coupons

Do you offer coupons, rebates, etc?

We, as the manufacturer of Preen, do not offer any coupons or rebates. However, very often our retailers or mass merchants offer their own special sale price, coupons or rebates. Local flyers, newspaper inserts and media advertising can alert you to these offers.

General Product Questions

What is the ingredient in Preen® Vegetable Garden Organic Weed Preventer?

100% Corn Gluten Meal.

What weed seeds does Preen® Vegetable Garden Organic Weed Preventer prevent from germinating?

See our list of weeds controlled or the product label.

How long does Preen® Vegetable Garden Organic Weed Preventer prevent its label listed weed seeds from germinating?

Up to 4 – 6 weeks per application. Reapplication may be necessary sooner if heavy rains occur.

How long does Preen® Vegetable Garden Organic Weed Preventer last in the soil?

Approximately 4 – 6 weeks per application. The rate at which Preen® Vegetable Garden Weed Organic Preventer biodegrades in the soil and loses its effectiveness will depend on temperature, soil type, rain/moisture, sunlight and amount applied.

What weeds does Preen® Vegetable Garden Organic Weed Preventer kill?

None. Preen® Vegetable Garden Organic Weed Preventer helps to prevent its label listed weed seeds from germinating up to 4 – 6 weeks per application. It does not kill or damage existing weeds in any way.

What does “established plant” mean on the Preen® Vegetable Garden Organic Weed Preventer label?

The term “established plant” refers to flowers, trees and shrubs at least 3″ in height, not recently transplanted and having a strong root system. An established groundcover is one not recently planted and that has spread or filled in to your satisfaction.

What are the particles on the soil surface after I watered Preen® Vegetable Garden Organic Weed Preventer?

Corn gluten meal granules, which will disintegrate with time.

How does Preen® Vegetable Garden Organic Weed Preventer work?

For 4 – 6 weeks per application, the corn gluten meal in Preen® Vegetable Garden Organic Weed Preventer helps to inhibit seed sprouting and/or root development of the label listed weed seeds.

Will rain wash Preen® Vegetable Garden Organic Weed Preventer away?

No, but reapplication may be necessary sooner if heavy rains or excess watering has occurred.

Why is the Preen® Vegetable Garden Organic Weed Preventer container not full?

Preen Garden Weed Preventer packages are filled according to weight, not volume. Your unopened container will weigh as stated or slightly more.

Do you have a guarantee on your products?

Preen® Guarantee: To the extent consistent with applicable law, Lebanon Seaboard Corporation guarantees you will be satisfied with the performance of Preen® products when used as directed, or your money back. If not satisfied, describe the nature of your problem, and send with proof of purchase to:

Lebanon Seaboard Corporation
1600 East Cumberland St.
Lebanon, PA 17042

Proper Use

When do I apply Preen® Vegetable Garden Organic Weed Preventer?

Anytime in the growing season when the ground temperature is at least 50–55 degrees Fahrenheit.

Do I have to weed first before applying Preen® Vegetable Garden Organic Weed Preventer?

Yes; since Preen® Vegetable Garden Organic Weed Preventer does not kill existing weeds, you must first eradicate/remove them. Note that Preen® Vegetable Garden Organic Weed Preventer will not control weeds that are tilled under.

When do I reapply Preen® Vegetable Garden Organic Weed Preventer?

Reapply every 4 – 6 weeks in the growing season for continued label listed weed seed prevention.

Can Preen® Vegetable Garden Organic Weed Preventer be applied when plant foliage is wet?

No; plant injury could result.

Must Preen® Vegetable Garden Organic Weed Preventer be watered in?

Yes; Preen® Vegetable Garden Organic Weed Preventer will not start to work until rain or watering occurs. If watering is not an option, time your application with rain. Lightly rake Preen Garden Weed Preventer into the soil surface to protect it from sunlight until rain occurs.

What happens if rain or water does not immediately occur after application?

Preen® Vegetable Garden Organic Weed Preventer will not start to work until rain or watering occurs.

Can I walk on a Preen® Vegetable Garden Organic Weed Preventer treated area?

Avoid walking on a treated area; any disturbance will result in erratic weed prevention.

How much Preen® Vegetable Garden Organic Weed Preventer do I apply?

Apply minimum 5 pounds of Preen® Vegetable Garden Organic Weed Preventer per 250 square feet, or apply up to 10 pounds per 250 square feet for better control with no fear of burning your plants.

Can Preen® Vegetable Garden Organic Weed Preventer be applied on plant foliage or plant roots?

Preen® Vegetable Garden Organic Weed Preventer is not labeled for application on plant foliage or plant roots.

What do I do if Preen® Vegetable Garden Organic Weed Preventer accidentally got on plant foliage during application?

Before watering, immediately dry-brush Preen® Vegetable Garden Organic Weed Preventer gently off plant foliage.

How do you use Preen® Vegetable Garden Organic Weed Preventer with established flowers, shrubs, trees, groundcovers, and vegetables?

Remove existing weeds and weed roots. Then, apply Preen® Vegetable Garden Organic Weed Preventer and water or rake thoroughly.

Does Preen® Vegetable Garden Organic Weed Preventer control weeds that are tilled under?

No; weeds that are not completely removed will emerge again.

Do I apply Preen® Vegetable Garden Organic Weed Preventer by hand?

No; apply with either the refillable shaker canister, the scoop included in some Preen® Vegetable Garden Organic Weed Preventer packaging, your garden scoop, or a make shift applicator.

Can I mix Preen® Vegetable Garden Organic Weed Preventer with water before application?

No; Preen® Vegetable Garden Organic Weed Preventer does not dilute in water and the product would not work.

What happens if Preen® Vegetable Garden Organic Weed Preventer was over-applied?

You can use up to twice the recommended rate with no fear of burning your plants. Higher rates may result in plant injury.

Staining

Can Preen® Vegetable Garden Organic Weed Preventer stain?

Yes; Preen® Vegetable Garden Organic Weed Preventer can stain porous surfaces such as concrete, rocks, bricks, landscape blocks, shoes, leather, linoleum, etc.

How do I prevent staining?

Before watering Preen® Vegetable Garden Organic Weed Preventer, dry brush stray granules off non target surfaces. Store Preen® Vegetable Garden Organic Weed Preventer packages in a garage or shed on top of cardboard or newspaper.

How can I try to get rid of a Preen® Vegetable Garden Organic Weed Preventer stain?

Try Goo Gone® or another citrus-based cleaning product to lessen the appearance of or remove a stain. Always test a small area first to ensure the product won't cause additional staining.

For porous surfaces: Use equal parts soapy water and bleach, or a paste of baking soda and water, or ultraviolet light/sunlight, or a citrus-based cleaner, or 409 carpet foaming spray cleaner. Always follow manufacturer's directions.

For non-porous, uncoated surfaces: Use acetone or an acetone based nail polish remover.

Storage & Safety

What do I do if I need emergency medical information for Preen® Vegetable Garden Organic Weed Preventer?

Immediately call Prosar Corporation toll-free at (888) 208-1368 and/or 911.

When can people and pets enter an area that was treated with Preen® Vegetable Garden Organic Weed Preventer?

They may enter the treated area immediately after application.

How do I dispose of Preen® Vegetable Garden Organic Weed Preventer or its empty container?

Call your local municipality to inquire on proper product disposal and/or package recycling, or call 1-800-CLEANUP. If not recyclable and container is empty, place empty container in trash.

Does Preen® Vegetable Garden Organic Weed Preventer expire?

No; Preen® Vegetable Garden Organic Weed Preventer has an indefinite shelf-life as long as it's sheltered from moisture and sunlight.

Can Preen® Vegetable Garden Organic Weed Preventer be stored for next year?

Yes. Store in a dry place away from sunlight and moisture, atop a piece of cardboard or an old newspaper.

Use with Mulch

Can Preen® Vegetable Garden Organic Weed Preventer be applied on top of mulch?

Yes. After removing existing weeds and weed roots, rake the mulch to loosen it, and ensure the mulch is 2″ – 3″ thick. Then, apply Preen® Vegetable Garden Organic Weed Preventer.

Can I apply Preen Garden Weed Preventer before mulching?

Yes, after removing existing weeds and weed roots. Then, apply Preen® Vegetable Garden Organic Weed Preventer and water thoroughly.

Use with Seeds and Young Plants

Will flower seeds or grass seed germinate with Preen® Vegetable Garden Organic Weed Preventer?

Flower seeds or grass seed will not germinate or reseed while Preen® Vegetable Garden Organic Weed Preventer is active, up to 6 weeks per application.

When can I sow seeds or transplant plants after an application of Preen® Vegetable Garden Organic Weed Preventer?

Six weeks from when Preen® Vegetable Garden Organic Weed Preventer was applied.

Where to Apply Preen

Can I use Preen® Vegetable Garden Organic Weed Preventer on my lawn or with grass seed or sod?

Preen® Vegetable Garden Organic Weed Preventer is not labeled for use on lawns, sod, or with grass seed.

Can I use Preen® Vegetable Garden Organic Weed Preventer in or near a pond, lake, or other type of waterway?

No.

Can I use Preen® Vegetable Garden Organic Weed Preventer around, under, or near a swimming pool, sandbox, playground type areas, under bird feeders, etc.?

No.

Can I use Preen® Vegetable Garden Organic Weed Preventer in or near a greenhouse or any type of enclosed area?

No; staining could occur.

Can I use Preen® Vegetable Garden Organic Weed Preventer where chickens, horses, or livestock graze?

No.

Can I use Preen® Vegetable Garden Organic Weed Preventer on a garden slope or hillside?

Yes, if a waterway is not at the bottom of the slope/hillside.

Can I use Preen® Vegetable Garden Organic Weed Preventer with a non-vegetable plant?

Yes, as long as the plant is established and is at least 2″– 3″ tall.

Can Preen® Vegetable Garden Organic Weed Preventer be used in potted plants or planter boxes?

Preen® Vegetable Garden Organic Weed Preventer is not labeled for use in closed containers; will injure plants.

Can I apply between bricks or patio blocks, on pebbles or on other hard surfaces?

No; Preen® Vegetable Garden Organic Weed Preventer will stain porous surfaces such as brick, patio blocks, stones, etc.

What plants are recommended with Preen® Vegetable Garden Organic Weed Preventer?

See our plant compatibility tool or the product label.

Where to Buy Preen

Is Preen® Vegetable Garden Organic Weed Preventer available outside the United States?

No; Preen® Vegetable Garden Organic Weed Preventer is not available or registered outside of the United States.

Can I order Preen® Vegetable Garden Organic Weed Preventer on your website?

No, but the product is available at most home and garden centers. Use our store locator to find a retailer near you.

Available Sizes

To review a particular product within this family please choose from one of the available sizes below, or you may continue to write a review for Preen Vegetable Garden Weed Preventer without selecting a size.

Plant Check help
This product is safe to use around all established flowers, trees, shrubs, fruit and vegetable plants.

Product Support

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