Preen Natural Vegetable Garden Weed Preventer

Preen Natural Vegetable Garden Weed Preventer is rated 4.7 out of 5 by 730.
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Enjoy a weed-free vegetable garden without all the work. Preen Natural Vegetable Garden Weed Preventer is the natural way to keep weeds from sprouting!

Use the natural weed control in your fruit, vegetable, herb, and landscape beds anytime during the growing season to save time from back-breaking weeding. Preen Natural Vegetable Garden Weed Preventer is formulated to control some of the toughest weeds, like clover, bluegrass, crabgrass, foxtail, lambsquarters and plantain. Because it's 100% natural, 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.

Quick Links

Application

How to Apply

Sprinkle Preen Natural Vegetable Garden Weed Preventer evenly 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 Natural Vegetable Garden 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 Natural Vegetable Garden Weed Preventer as early as possible, you can eliminate the need for hand weeding. Reapply every 4 – 6 weeks.

Since Preen Natural Vegetable Garden 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® Natural Vegetable Garden Weed Preventer?

100% Corn Gluten Meal.

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

See our list of weeds controlled or the product label.

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

Approximately 4 – 6 weeks per application. The rate at which Preen® Natural Vegetable Garden Weed 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® Natural Vegetable Garden Weed Preventer kill?

None. Preen® Natural Vegetable Garden 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® Natural Vegetable Garden 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® Natural Vegetable Garden Weed Preventer?

Corn gluten meal granules, which will disintegrate with time.

How does Preen® Natural Vegetable Garden Weed Preventer work?

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

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

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

Why is the Preen® Natural Vegetable Garden 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® Natural Vegetable Garden 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® Natural Vegetable Garden Weed Preventer?

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

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

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

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

No; plant injury could result.

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

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

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

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

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

Apply minimum 5 pounds of Preen® Natural Vegetable Garden 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® Natural Vegetable Garden Weed Preventer be applied on plant foliage or plant roots?

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

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

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

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

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

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

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

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

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

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

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

What happens if Preen® Natural Vegetable Garden 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® Natural Vegetable Garden Weed Preventer stain?

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

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

They may enter the treated area immediately after application.

How do I dispose of Preen® Natural Vegetable Garden 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® Natural Vegetable Garden Weed Preventer expire?

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

Can Preen® Natural Vegetable Garden 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® Natural Vegetable Garden 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® Natural Vegetable Garden Weed Preventer.

Can I apply Preen Garden Weed Preventer before mulching?

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

Use with Seeds and Young Plants

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

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

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

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

Where to Apply Preen

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

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

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

No.

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

No.

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

No; staining could occur.

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

No.

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

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

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

Preen® Natural Vegetable Garden 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® Natural Vegetable Garden Weed Preventer will stain porous surfaces such as brick, patio blocks, stones, etc.

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

See our plant compatibility tool or the product label.

Where to Buy Preen

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

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

Can I order Preen® Natural Vegetable Garden 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.

Weeds Controlled

Available Sizes

Reviews

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 Natural Vegetable Garden Weed Preventer without selecting a size.

Rated 5 out of 5 by from Works great! I've been using this product for a couple of years now. It works beautifully to keep weeds from cropping up in dense flowering beds. No more pulling weeds!
Date published: 2017-05-30
Rated 5 out of 5 by from Results are as promised!! Follow the directions....You won't be disappointed and the Five pound jug will provide many applications for future seasons,especially for the urban farmer trying to maximize small spaces for optimal fresh produce results.
Date published: 2017-05-30
Rated 5 out of 5 by from Excellent for stopping weeds. Have used this product for at least 10 yrs. or more and never been disappointed by it.
Date published: 2017-05-30
Rated 5 out of 5 by from Great help I have been using this for about 3 years. I love it! Takes most of the work out of weeding my gardens. Add a sprinkle every three months and it stays mostly weed free.
Date published: 2017-05-30
Rated 5 out of 5 by from Works well! I've used this product for years and I never have to weed. It's a great product for my garden
Date published: 2017-05-30
Rated 5 out of 5 by from Great results! This product is easy to use and gives great results. I LOVE the fact that it is organic, too. The directions were easy to follow.
Date published: 2017-05-30
Rated 5 out of 5 by from Fewer weeds---easy choice It's a no brained! What's not to love? Just try it to see.
Date published: 2017-05-30
Rated 5 out of 5 by from Safe to use for veggies! Love it. This product works as promised and helps control the weeds. Before it's use we were constantly out pulling weeds.
Date published: 2017-05-30
Rated 4 out of 5 by from It really works. This is my second year of using this product and I am very happy with it. I thought it might not work this year because we had so much rain and then so many weeds. But, once I pulled the weeds, planted my veggies and applied the Preen, there has been no sign of weeks.
Date published: 2017-05-30
Rated 5 out of 5 by from works fast Helps keep my garden clear of weeds and it won't hurt my vegetables.
Date published: 2017-05-30
Rated 5 out of 5 by from Super easy Great way to get your garden area ready for plants. Easy to use and works great
Date published: 2017-05-30
Rated 5 out of 5 by from Easy Pour I was able to handle the easy pour container and was ever so impressed and pleased with the results ~NO WEEDS!
Date published: 2017-05-30
Rated 5 out of 5 by from Great Product Would not try to garden with out it. Saves hours of work.
Date published: 2017-05-30
Rated 5 out of 5 by from This product really works hard I put this product around my vegetable garden to help me control any weed growth that might interfere with my vegetable plants. I highly recommend this to Gardner's.
Date published: 2017-05-30
Rated 5 out of 5 by from great weed control i bought a bag in early spring to use on the west side of my home around the bushes i planted two years ago. Cleaned out a few weeds around the bushes & applied Preen,have yet to find a weed among them ! Best investment I've made in a long time.Very happy with Preen, & a Happy gardener.! Patty J.
Date published: 2017-05-30
Rated 5 out of 5 by from Love this stuff! I use this every spring after my annuals are in and established! Saves time weeding, and I get to enjoy my summer!
Date published: 2017-05-30
Rated 5 out of 5 by from Great tasting vegetables This product is fantastic! It is great because of it being organic. I like the fact of no chemicles in my vegetables. Great gardens happen and the weeds stay away. Awesome combination....
Date published: 2017-05-30
Rated 5 out of 5 by from FRUIT TREES I SPRINKLE PREEN WEED PREVENTER ON THE GROUND AROUND MY FRUIT TREES, IT'S GREAT. NO WEEDS!
Date published: 2017-05-30
Rated 4 out of 5 by from No more aching back! I have used Peen in the shaker bottle for many years. As a Master Gardener it is important for me to know a product is not a threat to our environment. Preen is simple to use and to store. Preen actually does keep the weeds down!
Date published: 2017-05-30
Rated 5 out of 5 by from Easy to use Used this up North in Ct. Had a big garden with all kinds of vegetables. Loved it
Date published: 2017-05-30
Rated 5 out of 5 by from great features I bought this a month ago and it works beautifully
Date published: 2017-05-30
Rated 4 out of 5 by from great product I love this product its great. Its easy and simple to use,. Makes my gardening job easy to use,.
Date published: 2017-05-30
Rated 5 out of 5 by from Love it! Preen has helped simplify my life. I have used the sprinkler jug and now refill it from the bag. I use it in hard to reach area's and I now do not have to worry about pulling weeds. It certainly has cut down on the time it takes to clean up my garden.
Date published: 2017-05-30
Rated 5 out of 5 by from Easy AND it works I've used this in my veggie garden for a while and it never fails me. I get the biggest and best tomatoes in my neighborhood!
Date published: 2017-05-30
Rated 5 out of 5 by from Preen for Garden is great! I use Garden Preen every year and swear by it. I start with an application in April and then in June and again in August. After the April application, I am on top of things so the amount I need to use again goes down. People comment on how weed free my garden is.
Date published: 2017-05-30
Rated 5 out of 5 by from Asparagus bed weed control. I bought property with established asparagus bed. I did not know how to control the weeds. I was told to put salt on it but that didn't work. This is year 5 and I have the best looking asparagus bed after applying the preen prior to emergence of the stalks. I will be using it every spring!
Date published: 2017-05-30
Rated 5 out of 5 by from Prevemter worker Brings make joy to simplify the garden work. My garden is free of weeds due to a high quality product that allows me to relax and enjoy retirement while getting the best results with my veggies.
Date published: 2017-05-30
Rated 5 out of 5 by from Preen Best Product to use for all weed control All the preen products work well. Try them all. Lots less work and the area safely used by design. I used this on my garden last year and it kept the grass and weeds under control. My garden looked better than it had in previous years, so I decided to use it again this year. The plastic container made it very easy to apply.
Date published: 2017-05-30
Rated 5 out of 5 by from Weeds Be Gone! This, and mulch, kept my garden growing bigger and better than ever before!
Date published: 2017-05-30
Rated 5 out of 5 by from great control I bought this product last year for around my squash and pumpkin plants. A very hard place to weed when they vine. I first bought the 5#jug with the shaker top. I then bought the large pail and used the shaker jug for application. This product worked so well I have done the same thing this year. I hope they never change the way it is made. Works great.
Date published: 2017-05-30
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