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Organic Kelp Fertilizer by GS Plant Foods - Omri Listed(1 Gallon) - Liquid Kelp Concentrate for Gardens, Lawns & Soil Yields 800+ gallons

  • Based on 3,365 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jun 24
Order within 2 hours and 56 minutes
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Size: 1 Gallon


Features

  • OMRI ORGANIC LISTED SEAWEED & KELP FERTILIZER: Liquid Kelp is a natural plant food that provides a range of benefits for plant health and nutrition. OMRI listed for organic use, GS Plant Foods Liquid Seaweed Fertilizer is a completely natural, seaweed extract fertilizer for plants. Our liquid seaweed will optimize soil conditions for greater root mass and improve nutrient uptake. It can be applied without concern for harmful chemicals or nutrient loss to the environment.
  • ONE OF NATURES MIRACLE PLANT FOODS: Made from the finest seaweed plant Ascophyllum Nodosum, this is one of natures miracle plant foods. Our seaweed extract improves your plants tolerance to excessive heat, wind, drought conditions and more. It increases and stabilizes chlorophyll in plants, which results in darker green leaves and increased sugar content in plants.
  • IMPROVES OVERALL PLANT NUTRITION AT HOME OR COMMERCIALLY: GS Plant Foods sea kelp fertilizer is used extensively on a commercial basis, as well as at home for gardeners as an organic soil conditioner. Using GS Plant Foods seaweed plant fertilizer will lead to improved nutrient uptake and general plant wellbeing.
  • EASY TO APPLY FOR NATURAL GREAT RESULTS: Apply liquid kelp to improve growing conditions in all growth stages. To use, simply mix 2 ounces of this liquid fertilizer concentrate organic into a gallon of water and apply. Each gallon of this mixture will then cover as much as 1,000 sq ft. Any sprayer will work, but for large areas, the hose end sprayer is easiest! This liquid kelp should be sprayed in the morning or late afternoon when temperatures are lower, and the leaves stoma are open.
  • TRUSTED & RELIABLE: At GS Plant Foods, we understand that you are placing your trust in us to provide you with the highest quality organic seaweed fertilizer products available. We have 100% confidence in the quality of our products and continuously strive to deliver the best customer experience. Our products are organic, easy to use, cost efficient, sustainable, and yield consistent & amazing results in your garden, no matter what you're growing or what medium in which your plants are growing.

Brand: GS Plant Foods


Item Weight: 128 Ounces


Item Form: Liquid


Coverage: Medium


Liquid Volume: 3.6 Liters


Brand: GS Plant Foods


Item Weight: 128 Ounces


Item Form: Liquid


Coverage: Medium


Liquid Volume: 3.6 Liters


Mixing ratio: 2 ounces 1 gallon


Specific Uses For Product: Lawns,Organic,Plant Food


Target Species: Plants


UPC: 610395858461


Unit Count: 128 Fluid Ounces


Product Dimensions: 7 x 4 x 11 inches


Item Weight: 8 pounds


Country of Origin: USA


Item model number: LK1


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


  • DID YOU LIKE HIGH SCHOOL CHEMESTRY? LOVE YOUR ENVIRONMENT- LIKE IT WHEN THINGS GROW? EXACTLY!!!!
Size: 32 Liquid Oz
A very interesting approach to ferterlization. I am not a big chemical kill the weeds guy. Yet, commercial ferterlizers don't bother me - especially those for step programs. But I am conscience of the environment and this natural approach was attractive - although previous attempts have not yielded substiantial success. Last year my landscaping was a disaster - mostly due to drough conditions. This year I decided to try to reseed my lawn with a drought resistent grass and came upon the Kelp - which fit in with my plan to apply ferterlized through a liquid/spray appropach. I have to say that so far this seems to be yielding results. Grass is growing well, requires less watering, but its early in spring - its dense green and the plants seem to be thriving. An unanticipated side benefit is that squirels and rabbits don't seem to like the ferterlizer as there has been a 95% reduction in grazing critters. I am going to order my second bottle - applying it through a watering dispersal rate of 1 oz per gallon- and using it every two weeks (so, just twice so far). I highly recommend it and am hoping for continued success thru the summer - If not, I will report back - but for now BUY IT, TRY IT - better than any alternative and seems safe if you value your environment. ... show more
Reviewed in the United States on June 1, 2025 by History junkie

  • How do you make your garden grow?
Size: 32 Liquid Oz
Every single tree/plant/ veggie in my garden is exploding from just a week of using this product! WOW!!
Reviewed in the United States on May 28, 2025 by heather watkins

  • Worthwhile purchase
Size: 1 Gallon
This stuff really works ! Noticeable improvement in plants..
Reviewed in the United States on May 21, 2025 by Rw06229

  • Por el peso del galón fue poco lo derramado pero lo suficiente para danar en empaque donde vino
Size: 1 Gallon
Llegó sin empaque porque caja se mojó con parte del liquido
Reviewed in the United States on May 12, 2025 by Onfalia B. Julian Silfa Onfalia B. Julian Silfa

  • Works well!
Size: 1 Gallon
My Bermuda grass loves it!!
Reviewed in the United States on May 12, 2025 by Ml007

  • Kelp for everything
Size: 1 Gallon
I live in SoCal so we garden year round. When I had more time I would put some in to a sprayer and mist my favorite fruit trees. I think this helped with plant growth and root growth. Whenever I transplant anything I use this mixed with water, maybe like 1/16 or less just a few drops goes a long way. I then plant the tree, plant, seed etc and then soak the ground with this as it’s supposed to be good for plant shock and new growth. I want to believe it helps. It is expensive but seems to last a long time. The price has gone up significantly, but what hasn’t? I’d recommend it to people trying to avoid chemical fertilizers, I use this on my plants 1 time a week mixed with 5 gallons of water. ... show more
Reviewed in the United States on October 15, 2024 by Kevin Coelho

  • Very little per gallon needed to make an amazing batch!!!
I am still testing this on my garden, but I do feel it is important to pass along that it might be best to simply use measuring spoons to make your mixture. I think my plants are responding well to this product, but just as the old adage conveys, "A little goes a long way". In all seriousness, follow the directions. Whatever volume of a blend you are trying to create, follow the path set out by the company, it is a very concentrated liquid that they send in this bottle. (Update from Aug 3, 2013: I DID burn my leaves because I DID NOT follow the directions as listed on the bottle. So just use whatever the prescription is from the manufacturer. The plants seemingly love this stuff now that I have corrected my amounts in dilution. I am still in the process of developing my eye for comparing plants that are on this product against those that are not on this product. Updated reviews to come in the future....stay tuned.) I have a Zep spray bottle that I use to spray my garden down. This liquid Kelp product is a very dark liquid and can easily stain clothes, fyi. All in all, I think I am going to have great and positive data in a few months. Just go easy with your mixture. If the measurement called for is a mere teaspoon, trust it. I made my first mixture by eye-balling how much I poured in the empty spray bottle. That was a mistake; my leaves wilted. It wasn't a broad and ubiquitous kill-off. But, I did pour out half of my 'too strong' mixture (preserved it in another container for a 2nd mixture) and diluted what remained with my distilled water. I am closer now to where I need to be with my mixture. If you are on the fence about buying this product, I would say consider going with buying a Quart because it is going to last you a very long time. I bought a gallon and I think at my current rate of usage, I'll have this product for well over a year in its concentrated form. A quart probably would've been the better way to go, but I know now despite it being after the fact. I think it is a wise investment, though. Looking forward to seeing fantastic results. ... show more
Reviewed in the United States on July 17, 2013 by Saari

  • Works amazingly
Size: 1 Gallon
I was encouraged by the reviews I read before purchasing the product. I must note one of the advantages is its being a liquid already and mixing well for use in a sprayer. I found that it has no scent that I could tell. It works amazingly well. I had a rapid growth out of my plants in a week or less less after using it the first time. It does last a very long time because you only use about an ounce to the gallon. I want to say this is made the most significant improvement in my plants and garden vegetables that I have seen using any fertilizer. I love the fact that it won’t burn the plants and is a huge advantage over other fertilizers I’ve used on my plants. And not being a corrosive chemical that causes other problems on your equipment. All the way around this exceeded my expectations and will continue to use it extensively. Really just couldn’t be happier with the product. It’s getting to be winter here and I stop using it when the leaves turn gray brown or fell off. I’ll continue to use it on any of the plants that have green leaves and will likely do some experiments to show the difference of with and without, but it is noticeable. Cost wise very affordable, ease of use is great. Long lasting as the gallon goes along way. Delighted I found it. Will be buying more. ... show more
Reviewed in the United States on November 2, 2022 by JDoss

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