Kelp4Less Green Lawn & Turf

Photo of author

Written By: Mark Marino

a Massachusetts Core Applicator License holder and owner/operator of Lawn Phix,

Updated on


No AI pledge. Authored and reviewed by Mark, not robots. Learn more.

If you buy something from one of our affiliate links, we may earn a small commission at no extra cost to you. I've used these products and provided an honest opinion on every product I review. This helps support our site and its free content, lawn care guides, and calendars. Learn more.

Green Lawn and Turf official2

The awesome guys and gals at Kelp4Less have a brand new product – and this time it’s specifically formulated for us lawn care addicts. Just in time for the 2020 lawn care season, Green Lawn & Turf is now for sale on the Kelp4Less website. After using a slew of their products in all of 2019, I reached out to Brandon and team to see if they would be interested in making a custom mix specifically for lawn and turf.  This new product directly compares to many of the N-Ext products from the Greene County Fertilizer Company, including RGS, D-Thatch, Humic-12, and MicroGreene.  How so? Check out what we put in this 5 pound bag.

Active Ingredients:

I wrote a full review of the ExtremeBlend and Humic Acid last summer. But for a very high-level and quick synopsis of each ingredient and it’s role in lawn care, read below:

  1. Extreme Blend: A blend of humic acids, fulvic acids, amino acids, and soluble kelp. Increases nutrient availability in soil; promotes healthy turf and deeper roots; kelp helps resist heat and drought stress (can help retail water in soil). 
  2. Molasses Powder: Provides energy for your grass in the form of carbohydrates/sugars. Can help “dethatch” your lawn, particularly in the warmer months. Safe for summer feedings.
  3. Iron Sulfate: Used to create chlorophyll – making you lawn greener within days.
  4. Humic acid: A soil amendment that increases beneficial soil microbes and microbial activity. Helps plants utilize added fertilizers, such as N-P-K.

Each of these ingredients play an integral role in the health of your turf. While purchasing each one of these amazing products separately will yield amazing results, I’m very excited that we could wrap this all into one.  Below are some images of the custom Green Lawn & Turf mix. 

[ngg src=”galleries” ids=”15″ display=”basic_thumbnail” thumbnail_crop=”0″]

Use Kelp4Less coupon code LAWNPHIX for 15% off everything in their online shop!

Don’t let the clumps fool you – they immediately break up and dissolve easily in warm water. The shelf life thus far is great. I’ve had this mix sitting in my basement for close to four months now and there’s no additional clumping. I store it in the same bag and box as it was shipped. And with like all dry powders and dissolvable mixes, this is best kept in a cool dry spot,   For me, the major benefits over liquid products is the shipping, portioning, and storage. 

Application Rates:

  • Apply up to 2 heaping Tablespoons (1 ounce/28 grams) to 1 gallon of water for every 1,000ft.2  
  • Spray evenly over your lawn (foliar)
    • This product can be watered in
  • Apply up to every 2 weeks, or every 4 weeks for more established lawns
    • Do not exceed 1 ounce rates, every 4 weeks in hot summer months such as July
  • Tip: Mix in a container with warm water overnight for better dissolving OR use warm tap water and a paint mixer drill attachment
    • Humic particles may clog some sprayers that don’t have tank filters

Use coupon code LAWNPHIX for 15% OFF YOUR ORDER TODAY!  

Follow me on Facebook:

Was the information on this page helpful?

Thanks for your feedback!
Author's Note: this piece has been updated for accuracy since its first publication on
Photo of author
Author: Mark Marino
My name is Mark Marino, and I am the founder, owner, and operator of Lawn Phix. With a passion for lawn care and turf nutrition for over a decade, I've dedicated countless hours to correcting soil and perfecting lawns. Today, my expertise, backed by formal courses at UMass Extension Pesticide Education, allows me to offer top-tier lawn care services and advice. I am a fully licensed and insured lawn care applicator in Massachusetts, specializing in comprehensive turf nutrition, weed control, and lawn pest control. My license number is AL-0053865. Contact me at [email protected] or +1 (508) 500-8402.

41 thoughts on “Kelp4Less Green Lawn & Turf”

  1. How much of this lawn mix do i apply using the common ortho sprayer on the market? I have 3000 sq ft turf to cover. Thanks

    • Hey… I use a backpack sprayer but you can use 1-2 tablespoons of product per 1,000 sq. ft. Depending on your dial setting and how quickly you walk/spray will dictate how much you throw into the chamber.

      Example: You can mix 3-6 total tablespoons in a gallon jug and mix overnight. Then fill your Ortho 4 times to cover 3,000 sq. ft. evenly.

      Let me know how you make out.

  2. Mark, OK got it! I just wanted to make sure I was on the right track in terms of measurements. So my understanding is the gallon amount doesn’t change only the product. Is this correct?

    • Exactly. You could mix it in 1 gallon or 1/2 gallon, as long as the measurements of the product is correct and the application is covered evenly. When I used my Chameleon hose end on the Extreme Blend, I did this (but took a long time)

      Hose-end sprayer (Chameleon): 1 Tablespoon of humic acid into the chamber, filled with water (30 oz.), set the dial to 4, and spread over 1,000 ft.2

  3. Awesome! I purchased the Green and Turf mix after reading your review. Happen to get it on a 2 for 1 special. I figure this would be a cost effective measure to the pre-filled 2.5 gallon products that seem overpriced. Hope this method yields comparable results. Mark, I thank you for your time.

  4. Just ordered 5lbs. Thanks for the discount code! I hope it works.. Honestly anything will help my yard right now. 20Ksqft so 5lbs should last me a while.

  5. Hi Mark,

    Your K4L blend looks promising. I’ve been using the GCF products for the last 3 years. I’m willing to give this a try. I have a spreadermate sprayer so I can apply 8 -9 gallons at a time. Can you apply too much of this product?

    • Hi Dennis,

      The Extreme Blend can cause damage to ornamentals if it’s mixed incorrectly. I hurt my hostas last year and killed some flowers because I wasn’t careful. But you can use up to 10 lbs. per acre on established turf. I’ve eyeballed way too much and my lawn was never affected.

      Too much iron could darken your lawn to where it’s almost black, but you’d have to add a lot of Green Lawn & Turf, I think, to be concerned.

      I’ve tested 2 dry ounces per 1,000 sq. ft. and it had no adverse side effects. For a 8-9 gallon tank, you could easily use a full pound (16 dry ounces) of product across 8,000 sq. ft. without issues.

      I hope this helps.


      • Thanks for the quick response Mark. I’m hoping that K4L has a 2 for 1 deal coming up. I would definitely buy the 5 lb bag. At 30k sq ft, I’d be able to apply every month for the season at a very reasonable price.

  6. Thank you for this article. I can’t wait to give this a try.
    I’m trying to calculate a cost per application. Do I have this correct?
    – 1 pound size is $28
    – There are 16 oz in 1 pound
    – 1 oz of product to one gallon of water per 1,000 sq feet, would yield 16,000 square feet of coverage.
    – Therefore, each pound of product @ 1 oz would cost you $1.75 per 1,000 square feet. Or, at 2 oz per gallon would cost you $3.50 per 1,000 square feet.
    Do I have this correct?
    Also, until I can afford a premium backpack sprayer, I’ll be using the ortho hose sprayer. Since I have 16,000 sq ft of lawn, trying to get a grip on what setting to set the dial. Can you assist?

    • With the discount code it comes out to $21 for 1 pound bag. One heaping Tablespoon is just shy of 1/2 ounce. So 2T (heaping) is roughly 1 ounce. This would be about $1.31 per ounce, per 1,000 sq ft (16,000 sq ft total).

      The dial setting would depend on how much product you put in the chamber and how fast you walk/spray. If you put 2 ounces of concentrate into the sprayer, you know that needs to last long enough to cover 2,000 – 4,000 sq ft. (Low/Hugh ratios)

      Hope this helps.

      I don’t use a hose end sprayer anymore but I’d suggest to do some test sprays to figure out the ratios and settings.

      • As a product competing to RGS, I’m not seeing the justification due to cost. Am I missing something.

        $1.30 per 1000sf is more than double the cost of RGS at 3oz rate.

        I thought k4L was a way to save money not spend more.

        • HI Eric. I’m sorry for the confusion but I don’t think this product is a direct comparison or alternative to RGS. I think a more apples-to-apples comparison to RGS would be the Kelp4Less Extreme Blend. That contains similar ingredients to RGS (humic, fulvic, sea kelp). This Green Lawn & Turf product is 2 parts Extreme Blend with 1 parts each humic acid (i.e. Humic 12), molasses powder (i.e. D-Thatch), and iron (i.e. 0-0-2 MicroGreen). Hope this helps clarify.

  7. Hi Mark,

    Love your website. Would this replace every kelp4less product in your cool season grass plan? Except for the calcium? Is it safe for summer heat? Thanks.

    • Hi Alec. Thanks! Yes this could replace the other Kelp4Less products. This is safe for summer applications — the molasses especially. Though I would suggest spoon feeding ~1-2 tablespoons per gallon every 1-2 weeks if you have the time.

      • Thank you.

        So this is 10-0-4 product. How do you calculate lbs of nitrogen per 1000 sq ft?

        I.e. Mixing 8 tablespoons in gallon of water and applying 32 ounces to 1000 sq ft.

        1/4 of 10% of the Weight of the gallon mix? Doesn’t seem right.

        • nitrogen is negligible and shouldn’t be accounted for. Their NPK analysis is per 100 lbs. These type of products focus on micronutrients and other micros for soil amendment/better nutrient uptake. It should be supplemental to regular fertilizer feeding.

  8. Hi Mark,

    I tried your k4l turf green product. I’m certainly not trying to bash the product. It seems promising and has great potential to be awesome but I have to say that I didn’t have a great outcome with it. It clogged up my sprayer like you wouldn’t believe. It was a black slurry of Humic. I had to clean out the filter multiple times until I got frustrated and ended up dumping the 8 gallons in the woods. I took your advise and kept and pre made all the apps the night before with hot water. I used 1 gallon jugs @2 table spoons per 1k sqft. Is this happening to anyone else? Major bummer because now I have 3 lbs that I don’t really know what to do with.

    • Hi Dennis. Im sorry to hear about your problems with the product.

      I tried this in two backpack sprayers and didn’t have any issues. They have a strainer basket and a filter in the reservoir. As I strain through the first filter there’s some Humic that didn’t dissolve, which I discard into my landscape beds.

      Have you tried straining it before adding to your tank? Or using a paint mixer (drill attachment)? I believe Kelp4Less is going to be swapping out the granular for powdered Humic to help with this issues. I’d suggest reaching out to them about your issues and see what they suggest.

      • Hi Mark,

        Thanks for the response. I use the paint mixer with all my apps. I have an 8 gallon tank that I mix my apps in. I have 30k square feet to cover. I didn’t think of straining it and it’s a great idea but wouldn’t that take away Some of the benefits your adding to the turf?

        I tried multiple times to make it work in my sprayer. It has a big cylinder strainer filter and this stuff was caked on. After cleaning out over 6 times, I had to abort the mission.

  9. Hi Mark,

    Good News, K4L is sending me the new mixture of your product. I’m hoping I can give it a fair shake now.

    • Great to hear, Dennis! I was talking to a couple of guys who also had similar issues as you. I’m wondering if it’s the ultra fine mesh filter that some of these larger commercial sprayers have that just doesn’t play well with the overall mix? Anyways, please keep me posted on how you make out with the new mix!

  10. This is a follow up to my previous question/comment.
    I tried this stuff out. Oh my….. this stuff is legit! I’m extremely impressed and satisfied with the results. I’ve applied this to my lawn twice now and will continue to do so on a monthly schedule during the growing season.
    In my experience, it’s extremely important when you’re mixing it up to use very hot water. This greatly assists in breaking down the Humic acid. I dumped the mix in a 5 gallon bucket and poured the hot water in. Then, I used a paint mixer drill attachment to get the mix to liquify. I left it overnight and mixed one more time the next morning. I haven’t had any clogging issues.
    Thank you so much for publishing this article. Kelp4less hit a home run with this stuff

    • Hey Rusty,

      Glad this worked out for you! I, too, think the paint mixer is the way to go – especially for this new powdered blend. Feel free to post some pictures and keep us all posted on how you continue to make out this season.

  11. Hey Mark,

    Just put down my first app of K4L Green Lawn & Turf. I have just under 20k sq ft. and needed a product that wouldn’t break the bank. Many of the liquid concentrates can add up quick $$$. Followed the directions for mixing and used a backpack sprayer to apply and did not have any issues… I still can’t believe how little is needed for 1 application to my lawn. I plan to “spoon feed” over the summer and get my soil right just in time for a front lawn renovation in the fall! I plan to change the grass type to a mostly Turf Type tall Fescue. Thanks again for the write-up and the coupon code!

    • Hi Pat,

      Thanks for the comment! I’m glad the Green Lawn & Turf is working for you. Spoon feeding throughout the summer is a terrific plan. Good luck with the reno – be sure to apply another application at seeding. And good choice using TTTF!


  12. The new mix is legit. No Humic “grains” and mixed well by just shaking it in an old Gatorade bottle. No leftover residue or clogs even in my basic manual pump Scott’s sprayer on my first 1 gallon/1k test spray. My package came in a big clump due to moisture though, but it was easier (and preferable) to measure out breakable nuggets than dry powder.

  13. Hey Mark,

    First of all I want to thank you for breaking everything down for us. I am new to this and have about 14,000 sq ft of lawn to treat
    In the beginning of the year I really like the Greene Co Fert product.
    I was planning use the RGS, Green Punch, Micro Greene, Greeneffect for my program.
    The cost roughly would be less than $140 annually if I was going to go with them.
    You mentioned The Green Lawn & Turf custom mix. Will this mix be a good replacement for the NEXT Fertilizer product I mentioned above?
    Also, can you breakdown the math of what it would cost me annually if I was going with Kelp4Less?
    Please and thank you!

    • Hi Hendry – thanks for your comment. Green Lawn & Turf (GL&T) would not replace GreenePunch as that’s an 18-0-1 blend. However they are working on creating similar all-in-one solutions for 2021. Examples: dry Urea, Sulfur & Iron which would be similar to GreeneEffect. I can email you when these products are live, if you’d like!

      GL&T could replace RGS + D-Thatch, but you also have Iron in there as well to help green-up. Their Humic Acid would replace Humic-12.
      -5 lbs. of GL&T is about $86 after using “LAWNPHIX25” for 25% off. These 5 lbs. (80 oz.) would cover 5-10 applications over your 14,000 sq. ft. (between 0.5 – 1.0 oz. per 1,000 sq. ft.)

      What are your application rates and frequency to be under $140/year? Knowing this will help me break it down further for you.

  14. Mark,
    Please let me know when they come out with the similar product to greeneffect! That would be great!
    The rates below is GCF recommendation
    RGS- 3oz per 1k- 8 x a year
    Green Punch- 16oz per 1k- 4 to 6 x a year
    Microgreen- 9oz per 1k- 4 to 6 x a year
    Greeneffect- 8oz per 1k- 4 to 6 x a year
    I hope this is good information for you.

    I have a question regarding humic 12 and de-thatch product, do you think this is necessary to put down on top of the other stuff that already has humic/molasses/amino acid and such?
    Your thoughts on that?

  15. I just purchased this and I’m doing the fall nitrogen blitz with 46-0-0 Urea, would you recommend holding off till Spring to apply or can I get down an application? Thanks.

    • Hi Peter. You can still apply GL&T. The amount of nitrogen in this product, especially when only using 0.5 -1.0 oz. per 1,000 sq ft is minimal. You’ll see a nice darker green, too, when used with urea.

  16. Question regarding using the ortho hose sprayer since the humic switched to powder. Have you given that a shot with the powdered Humic in this blend and any recommended setting for it? Do you still mix it ahead of time first in water and then store that mix and use it throughout the season?
    I only have 900 square feet to tackle so never needed a backpack sprayer.

    • Hey Cento. I haven’t used this with a hose-end sprayer, but for just under 1,000 sq ft it shouldn’t take long with the dial set to 4. You only need about 1T per app o that should dissolve in the 32 oz chamber. I personally still strain because it’s easy enough and don’t want the hassle of clogging – just in case.

  17. Guys, I just happened to come to this site after trying to find some mixing ratios for Kelp4Less products. I do agree their instructions for application or coverage is not very clear.

    1. The best way is to find out how much sq. ft. does 1pound of the powder covers. Lets say 1lb covers 1 acre (lets assume its about 43k sf). If you have a 5,000 sf lawn one pound should give you 8-9 applications, lets say 8. So 16oz will give you 8 applications. so you will need 2oz for each application of 5,000 sf.

    2, If you are using a back pack sprayer, its important to mx the solution and then use a cheese cloth to filter any solid residues (v. imp). Unless you are using some ready made solutions like N-EXT RGS, if you don’t filter your sprayer will get clogged.

    3. I use the old Jerry baker hose end sprayer. 32 oz. for me covers 2,500sf. So if its a 5,000 sf lawn I would mix 2oz in a half gallon container.


Leave a Comment