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Corn Gluten Organic Fertilizer 8-0-0 - 40 lbs

Item #: CG800-40

Our price: $69.95


This Corn Gluten Fertilizer is the only OMRI-certified organic and non-GMO corn gluten available on the market. Apply year-round to fertilize lawns and shrubs while preventing weeds from emerging. Your lawn will also develop deeper roots and require less watering. read more

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Our Price: $69.95


Corn Gluten contains 100% corn gluten meal, a naturally occurring substance, which inhibits the growth of a seed's tiny feeder roots. This causes the seedlings to die before they germinate. Since most weeds germinate by seed corn gluten will kill the seeds before they sprout.

Corn Gluten offers a non-toxic, yet effective alternative to chemical-based weed and feed products for weed control in lawns and gardens.

Features & Benefits:

  • Organic fertilizer feeds lawns naturally
  • Helps build strong turf
  • Use for pre-emergent weed control
  • Apply by hand or using a spreader
  • Safe and environmentally friendly
  • Meets National Organic Program standards
  • OMRI certified for organic use
  • Made in the USA

Corn Gluten as Fertilizer

As a plant food, corn gluten has a N-P-K ratio of 8-0-0. It will fertilize your lawn, and prevent the growth of new weeds. Because it prevents seeds from sprouting, make sure you wait 60 days after application before spreading grass seed. Corn Gluten can also be used to fertilize shrubs and transplants. As a fertilizer, corn gluten can be applied at any time of year. The nitrogen releases slowly over a 3-4 month period after application.

Guaranteed Analysis:

Total Nitrogen (N): 8%. Water-insoluble nitrogen: 7%. Nutrients for this product are derived from 100% Non-GMO Corn Gluten Meal, and contain no animal manure or fillers.

To Prevent Weed Growth:

As a weed suppressant, corn gluten acts as a natural "pre-emergent" - it inhibits seed germination by drying out a seed as soon as it begins to sprout. These qualities make corn gluten an ideal 'weed n feed' product.

To take advantage of its weed-prevention properties, corn gluten must be applied before weed seeds germinate. Apply in early spring before the weeds begin to sprout, as a general rule, around the time when the forsythia, daffodils and early spring bulbs are blooming. Apply again to lawns in the fall. Corn gluten is also useful when transplanting vegetables and shrubs. Apply immediately after transplanting to prevent weeds from sprouting through the enriched soil and competing with your transplants.

Corn Gluten controls common broadleaf weeds:

  • Dandelions, Barnyardgrass, Curly Dock, Green Foxtail, Orchardgrass, Shattercane, Purslane, Wooly Cupgrass, Giant Foxtail, Lamb's Quarters, Buckhorn Plantain, Quackgrass, Crabgrass, Velvetleaf, Annual Bluegrass, Creeping Bentgrass, Black Nightshade, Black Medic, Redroot Pigweed, Catchweed Bedstraw, Clover, and more

Safe for people and pets

Our OMRI Certified Organic Corn Gluten Meal is derived from 100% Non-GMO corn where no commercial fertilizers, pesticides or fungicides are applied. No neonicotinoids. People and pets can use the lawn immediately after application. It will not harm beneficial insects, soil organisms, ponds or stream life.

How To Use:

Initial treatment: Apply 20 lbs per 1,000 square feet of lawn, garden or flowerbed area. Subsequent treatments: Apply 30 lbs per 5,000 square feet. Apply up to 500 lbs per acre for commercial farming use. For best results, apply twice a year in spring and fall. If using for pre-emergent weed control, the timing of the spring application is important. When applying corn gluten in the fall, do before winter annuals emerge, and in the spring before winter annuals come out of dormancy and to treat the summer annuals that will begin to emerge.

Corn gluten can be broadcast by hand or using a spreader. You can use a drop spreader or a broadcast spreader for ligher applications.

Apply corn gluten at suggested rates and leave for 24-48 hours without watering (preferably with no rain in the forecast for 48 hours). If it does not rain within 48 hours of application, water it in with approximately 1/4 inch of water, or water lawn with a soaking type rainfall. The point of not watering it right away is to begin slow breakdown, so if heavy rain comes it doesn't wash away. Allowing for a slow crumbing effect helps keep it in place.

Notes on Use from Dr. Nick Christians at Iowa State University:

Corn gluten meal works by inhibiting the root formation of germinating plants. It generally does not inhibit the roots of mature plants or transplants until you reach very high rates (80 pounds/1000 square feet or higher). It should be applied before germination of the weeds. The weed will germinate and usually forms a shoot, but does not form a root. After germination, a short drying period is needed to kill the plants that have germinated but have not formed a root. Timing is critical. If it is too wet during germination, the plants will recover and form a root (this is also true of chemical pre-emergent herbicides).

As a pre-emergent, corn gluten will remain effective for 5-6 weeks following germination.

Corn gluten does not work well with seeded garden crops unless they are seeded deeply. Transplants or mature plants generally work well. Some growers put down a band, work it into the upper inch of soil, and then put the transplant in the band.

In garden and crop production, growers generally work out their own system, depending on their understanding of the crop they are growing and the weeds they are trying to control.

For bulk orders, please contact

100% Satisfaction Guarantee

We want you to be completely satisfied with every purchase you make. If you are in any way dissatisfied with a product you ordered, we'll exchange it, replace it or refund your money within 30 days of purchase. Simply email us the problem, and we'll take care of you. Certain products have extended warranties (up to 50 years!) that are listed on the particular product page. Please call us at 1-888-451-6752 if you need further clarification.

Additional Information

Weight 40 lbs.
Coverage 2000 square feet
Key Feature Organic nitrogen fertilizer (8-0-0) with natural preventative pre-emergent weed control properties. Non-GMO corn gluten meal.
Origin Made in the U.S.A.

Shipping Information

Shipping Details:
Insured against damage or loss while in transit
This Product Ships To:
US Lower 48
Ships Via:
Ground Only (No express)

Questions about the Corn Gluten Organic Fertilizer 8-0-0 - 40 lbs

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  • From C at 9/28/17 9:08 AM
    • I have a St. Augustine lawn in Houston and wanted to know if I put down this fertilizer, does it also act as a winterizer fertilizer or is it strictly acting as a pre-emergent agent? Said another way, do I need to also purchase organic fertilizer (winterizer) in addition to this pre-emergent?
    • Our corn gluten will act as both a winterizer and pre-emergent if applied in Autumn.
    • Do you find this question helpful?  Yes  No
  • From V at 4/16/17 8:24 PM
    • One users comments mention squirrels eating the corn gluten.What are your recommendations to keep critters away so the corn gluten can stay on the treated areas and do its job of suppressing weeds instead of providing expensive, organic, non-gmo nutrients to the neighborhood critters?
    • The corn gluten in our new 40lb bags do a better job of breaking down naturally, but if you are in a particularly arid environment we suggest watering for at least 1-2 hours until they begin to crumble.
    • Do you find this question helpful?  Yes  No
  • From bill at 9/21/16 5:42 PM
    • I have been told I can't buy corn gluten in Florida because some product labeling issues. I am just checking that your company can ship corn gluten into Florida.
    • We are not aware of any restrictions on shipping to Florida, and have never had an issue sending it. If you are still concerned please reply with more details on where you read it and we will investigate!
    • Do you find this question helpful?  Yes  No
  • From Sarah at 6/10/16 12:50 PM
    • Since I have weeds that continue to germinate all through the summer, wouldn't it be helpful to spread the corn gluten even if I did not do so in spring and have weeds appearing now? I realize it will not kill the established weeds and that I will have to remove them in a different way but in the mean time they are seeding continually.
    • Yes, Corn Gluten application will stop future germination. Anything that has began germination will not be killed. The most effective time to spread it is when spring bulbs like tulips are blooming as that is typically right before the weeds will begin to germinate. It is the recommended time because it prevents the most weeds from germinating - but you can certainly spread it any time! You will just have to remove what has already germinated. It also acts is an excellent fertilizer!
    • Do you find this question helpful?  Yes  No
  • From Jane at 5/23/16 9:47 AM
    • According to Nick Christians' research, protein content of the corn gluten meal should be 60% to act as an effective pre-emergent weed control. What is the protein content of your formulation?
    • Hi Jane, you'll be happy to know that the protein content of our Corn Gluten is also 60% on the dot.
    • Do you find this question helpful?  Yes  No
  • From Darlene at 3/5/16 6:35 AM
    • Can I use corn gluten when I plant potatoes and onion bulbs? Can I use it when I plant gladiolus, lilies, iris and dahlias? As you know these are not seeds and are not germinating but coming up from bulbs and corns.
    • Yes, corn gluten meal is considered safe for use around bulbs and corns, shrubs, trees, and ornamental plants.
    • Do you find this question helpful?  Yes  No
  • From Casey at 10/1/15 1:00 PM
    • Do you have any special instructions for applying corn gluten if I've been using chemical, non-organic fertilizers up until recently?
    • If you are transitioning from a “conventional” way to treating your lawn or garden with chemical products to control weeds to more natural and organic methods, please understand corn gluten is time sensitive when applying. Always follow directions: if applying an application in the fall, always do before winter annuals emerge, and in the spring, before winter annuals come out of dormancy and to also treat the summer annuals that will begin to emerge. Corn gluten is used to prevent weed seedlings from emerging and taking off. It typically takes two applications (recommended one in the fall and one the following spring) to get new weeds and existing weeds that produced seeds under control. If weeds are extremely dense, more than two applications may be needed. To keep lawns and gardens in top condition, applying one application at least one time per year (spring application would be best) will help keep weeds under control.
    • Do you find this question helpful?  Yes  No
  • From Courtney at 7/14/14 10:30 AM
    • Would this product benefit my vegetable garden plants?
    • Corn gluten will prevent seeds from germinating, including vegetable seeds. (Some larger seeds such as corn, beans and squash may grow through corn gluten in the soil.) Corn gluten will not harm established plants, and does have value as a fertilizer, but if you plan on sowing seeds in the months ahead then it's not a good idea to use corn gluten in vegetable beds. There are many other sources of nitrogen for vegetable gardens which are 'seed safe'.
    • Do you find this question helpful?  Yes  No
  • From Sara at 2/10/14 9:17 AM
    • We have 2 established asparagus beds which are over-run with the weeds listed as being susceptible to corn gluten meal. But what about our asparagus?
    • Corn gluten prevents new weeds from sprouting by drying them out as they germinate. Corn gluten does not eradicate existing weeds. For your asparagus beds, we suggest hand pulling the surface weeds, then mulching the bed, leaving a clear space above the root crowns where the new asparagus emerge. Presumably you have already clipped down last season's stalks to about 1" above the ground. These stubs help you know where not to mulch, since the new shoots will be coming from amid the stubs.
    • Do you find this question helpful?  Yes  No
  • From Susan at 3/12/12 7:21 AM
    • Is this product safe to use around already existing plants (i.e. raspberries, strawberries, other ornamental flowers in beds)?
    • Yes, this product is safe to use around any existing plants.
    • Do you find this question helpful?  Yes  No

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