Extreme Blend

(43 customer reviews)


Specifically formulated to increase plant vigor, produce uniform lateral branching, increased flower development sites and yields. For best results foliar spray weekly through out week 4 of bloom/flower.

Not Avail in California


Product form:
Dry powder, water soluble

NPK analysis:

What does Extreme Blend Do?

Extreme Blend will provide you with Master Level gardening results without Master Level Skills. Spray or root drench Extreme Blend and watch your plants come to life. Plant response within 24-48 hours.

Soluble Kelp
Humic Acids
Fulvic Acids
Amino Acids

Product designation:
Natural (This product is a candidate for organic certification. To ensure the lowest price, Kelp4Less has chosen not to register this product.)

Primary function/use:
Aids the plant during the grow and bloom stages. Promotes photosynthesis. This is one of Kelp4Less’ most popular products.

Product Comparison Results:

Overall Plant Growth:

Extreme Blend

Other product highlights:
One product that has all of the organic acids in one blend. It is a whole spectrum of amino acids, fulvic acids, humic acids and kelp.

Well suited for:
Hydroponics, soil and soil-less.

When and where to use:
During all stages of plant development.

Root Irrigation:
Mix one (1) tsp. with one (1) gallon of water.

For foliar:
Mix one (1) tsp. with one (1) gallon of water. Apply by misting or spraying the surface of plant leaves until runoff. Apply weekly.

For Hydroponics:
Mix ¼ to 1 tsp. with one (1) gallon of water.

Hose sprayer:
Put one (1) tbs. in the sprayer and fill with water. Adjust dial on the sprayer to 1/3 open (often found around two (2) oz. on the dial) then to apply on grass, trees, shrubs or anything with leaves.

Ensure bag is properly sealed and stored in cool, dry, dark place.

Additional information

Weight N/A

43 reviews for Extreme Blend

  1. Rich

    This like so many of their products is amazing no BS. The mixture just makes everything work better. Ive seen it save someones garden. As a foliar it is unstoppable, and you can add so many other things that kelp4less has its awesome!!

  2. CArol

    This stuff is simply amazing! Remember it doesn’t take much as a foilar spray, but my plants are getting nice AND GREEN! tHANK yOU KELP4less!!!!!!!!!!!!

  3. Stephen Canaday

    This blend is nothing short of amazing and is the best all around fertilizer I have found to date. I replaced all of my complicated two and three part solutions with this easy to mix blend and my plants have never looked better. If you’re growing peppers or tomatoes, mix this with Kelp4Less gypsum and watch your plants flourish!

  4. Dalen Peiser

    I have used this on lettuces, tomatoes, radish, strawberries and various flowers and they have all responded nicely to both soil and foliar application. The powder dissolves quite easily in water. A very good product.

  5. Judy Coppersmith

    Extreme Blend is my new beauty secret. After three applications, the foliage is taking on that dark blue green foliage color that I had coveted, in the garden of others, for so many years,

    I stumbled onto Kelp4Less after reading blogs touting their wondrous products.
    I was sold when I listened to the video describing the Extreme Blend. It sounded like something which suited my sensibilities. I really appreciate the mixing concentrate which I apply with a hose end sprayer. I use one gallon of concentrate per application, divided into eight fillings of my sprayer container. I use this spray on mostly roses, daylilies, and clematis. I have too many plants to count and this economical product makes my garden look so nice. The foliar sprays that I have used in the past were ready-mixed and expensive if used in the amounts that I require.

    I have long been in search for a easy, powerful foliar feed which would give me quick results. I have found what I was looking for with Extreme Blend…….

  6. Jonathan Johnson

    I’ve done all my liquid fertilizer shopping needs right here at kelp4less.com the last two years. I’ve tried numerous products but this is the one that gives great immediate and noticeable results. This product has given me so much faith in their blends that next year I’m giving their grow pack a shot. This place used to save me money, now it saves me money and time.

  7. Jon Silva

    I have been using this product for about a year and have yet to be disappointed by it. I have used it on all my plants, and have given a ton away to other people, and have gotten back nothing but requests for more, and stories of surprising growth and green-ness.
    It compares very well to similar products from other companies, except in value, where this trumps others by far, instead of tablespoons of liquid per gallon out of a $40 dollar quart, its the tiniest amount of powder per gallon, or a tablespoon in a sprayer can feed your entire garden.
    Highly recommended for all types of common plants.

  8. Jason Terry

    I absolutely love this product. Gave my plants the added pick me up they needed each week. Plants responded within hours and results were visible same day. I am a believer and will continue to use Extreme Blend.

  9. Jason

    I use extreme blend on my giant pumpkin plants and It keeps the leaves and soil healthy. Even in the heat and non stop rain in North Georgia my plants look good all year.

  10. K. Scholl

    Extreme Blend is by far hands down the best foliage spray for leaf applications. I have been using this product for several years and the results are amazing. Here in Colorado the growing season is less than 4 months. I have been using this on all my deciduous trees and shrubs. The best time to apply is in the evening after a rain or any day when it is 100 percent cloud cover and high humidity. My cottonwood trees have averaged 2 1/2 to 3 ft. growth per growing season. All plants treated with the extreme blend have expressed similar results. I have not had good results on conifers through foliar spray, but through root ball applications. This product is also excellent for your house plants. For best results mix as recommended as more concentration could burn your plants. Kelp 4 Less is now my only source for horticulture products. Do your research and you will find they have the best products for the money and the free shipping seals the deal. You must try Extreme Blend and use it as directed for one growing season and you to shall be amazed. Best foliar spray on the market, period.

  11. John Matthias

    This is the greatest stuff I have in my collection of nutrients. The plants come alive when they get it and the color of the leaves is a dark forest green, beautiful! The taste from my fruit is the best, with a sweat nutty flavor that was not noticeable before using this product. Highly recommended.

  12. Cheryle

    We have had difficulties with the purchased soil in our garden for the past two growing seasons and I believe that the extreme blend is the only thing that has kept any of the plants alive and producing. I split the package with a family member who gardens in sandy soil in northern Ontario, Canada. They had never had such a beautiful and productive garden as when they used your extreme blend and liquid gold. We are truly glad that we found Kelp 4 Less. Thanks you.

  13. Chandra

    I like feeding a very small amount to clones and seedlings. 1/3 teaspoon in a gallon of water and then feed a dropper full a day into the clone machine or into the regular watering for seedlings

  14. Muata

    I was going to wait 6 months before leaving a review, but after close to 4 months of using Extreme Blend, I couldn’t wait any longer. I hybridize and sell daylilies in Southern CA. Most of my daylilies are evergreen, so I’m tending to them all year round. Some are in the ground, in raised beds, and in various sized fabric pots, etc … After using Extreme Blend, I have watched each and every daylily, regardless of where they are planted, in my little nursery literally transform! The new foliage on the established plants increased at least by one-third in width! I even sprayed EB on some seedling, and the same thing happened. The new growth is noticeably larger, more vibrant, and stronger. Just amazing … I use it with a pinch or two of yucca powder and spray once a week. Oh, and I spray it on all my other plants and trees as well with noticeable results, but my daylilies have responded the most. EB is truly an economical and effective product, and it’ll make your neighbors think that you actually know how to grow plants ????

  15. Larry

    Extreme blend is simply the best.has everything my plants love. Within 1 week my plants turned a beautiful dark green.growth is fantastic and may be outgrowing their inside tent. Wonderful stuff and a great company.I love this stuff. I won’t use anything else by another company.

  16. Thomas

    I used the extreme blend this season on my beans and tomatoes. I got 20+ bushels beans more than ever before and still harvesting tomatoes.

  17. HydroRod

    Have been using this Extreme Blend over Bud Candy for the last four weeks and can honestly say “GoodBye” to Bud Candy! Depending on the Extreme Blend strength is determined by what stage of growth my garden is in because it has become my base nutrient in either stage veg or bloom, I won’t grow without it!

  18. Jack

    Great customer service. Fast shipping. Excited to see if this product work. I am going to intentionally attempt to nutrient burn some of my high value flowering plants to verify concentration of product. Will update with results.

  19. Frank

    The bulk of my gardening is spent on growing giant pumpkins, and Extreme Blend combines several of the key products needed to “grow ’em big”. Extreme Blend will be a part of my arsenal next year again.

  20. Rudy Ruiz

    I really love this stuff, it super charges my chilies plants. Deep Green leaves and strong stems.

  21. Sean

    This product is simply amazing….lush, green, thriving plants after first application and weekly applications result in large, healthy plants.

  22. Tristin

    Amazing stuff plants really do respond within 48 hours and as long as the plant likes nutrients it will love this. Used on milkweed and it deformed it because milkweed doesn’t like much nutrients. Whoops haha. But my tomatoes were over 14 feet tall and same with my other green stuff. Have recommended to many people who have also had much success.

  23. Beth

    Last year was the first time I used this product. I used it as a foliar spray. I was kind of hit and miss with it.I did notice however that the plants loved it. Talk about come to attention. So this year I’ve been using it weekly. WOW is all I can say..The results are well worth the effort.

  24. Big D

    This product is HANDS DOWN a GAME CHANGER!!!!! My plants LOVE IT when I add extreme blend to my compost tea brews. You guys are doing things RIGHT over there and I LOVE IT!!!!

  25. JasonTramonto

    I use Extreme Blend at 1/4 tsp with a 1/4 tsp yucca per foliar gallon and have seen amazing growth on kale, mustard greens, spinach chard, carrots, tomatoes, strawberries, lettuce, fruit trees, and roses. Leaves turn a dark, healthy green, trichrome hairs were explosive on tomatoes, and my spinach chard grew leaves at least 5 times larger than I’ve ever seen. I spray everything once a week and everything seems like it’s growing in turbo.

  26. Rod Shaw

    this product is amazing. I use it whenever my plants require nitrogen instead of traditional fertilizers with great results.

  27. paul hilton

    I used this powder in my veg and bloom concentrates. WAY BETTER AND MORE ECONOMICAL THAN LIQUID KARMA!

  28. Mark (verified owner)

    I started using Extreme Blend on my cool season lawn this year and was blown away by the results. I used 2 Tablespoons per 1 gallon per 1,000 sq. ft. and applied bi-weekly. My lawn has never look so dark green – especially in the heat of the summer. You can’t beat the price and quality of Extreme Blend. An absolute must for any lawn care addict.

  29. Robert McDonough

    ✔ Increases lateral branching
    ✔ Stimulates calcium ion channels (thicker shoots)
    ✔ Rich source of micronutrients for more complex volatile organic compounds
    ✔ Unlocks cation exchange capacity
    ✔ Stimulates microbial cell division
    ✔ Increases transpiration for faster growth
    ✔ Raises brix for sweeter fruit
    ✔ Enhances immunity to pests pathogens and disease
    ✔ Maximizes nutrient uptake for faster growth
    ✔ Chelates micronutrients (includingCaMg)
    ✔ Source of nitrogen for plants that will not cause burn like conventional fertilizers
    ✔ Best biostimulants in the business

  30. rjjrmiller (verified owner)

    Extreme blend was applied foliar spray 3 days ago to my cool season lawn. After 36hrs the results were impressive, after 72hrs the results are hands down outstanding, maybe the most noticeable changes I’ve ever seen from any application in such a short time. To be fair this is the first growing season I’ve been using foliar sprays almost exclusively. Previously I used more granular nutrients and compost. However this summer I’ve combined indivdual products into tank mixes at different rates, sometimes very high rates with micro nutrients, humic and fulvic acids, molasses and chelated iron and ammonium sulfate for fast acting nitrogen with a surfactant.. a few brands of micro nutrients including a “sea weed”product.
    Some mixes had rouguly the same benefits in 3 days Ive seen with Extreme Blend, none were better. Its only been 3 days since Extreme Blend was used, but Ive never been so excited from results that I’m motivated to write a review, I rarely write reviews and its usually when I’m disappointed in a product.

    I do wish the label gave more detail in the application directions. “Hose Sprayer: 1 tbs and fill with water, adjust dual on sprayer to 2oz to apply on grass”
    Uh how many square feet of grass does this cover? Most labels include the amount of product for 1000sq ft, but 1 tablespoon cant be for 1000sq ft since 1 Tablespoon is only 0.11Oz of nitrogen, and to confuse further hose end sprayers are too small to hold 1 gallon of water. 1 gallon is the amount of water recommended for Extreme Blend in other sections of the label.
    Yet in the reviews a few people claim to use Extreme Blend as their primary fertilizer so they go way higher than the label directions?

    The product is excellent…and affordable. Im dam impressed and Ive spent a lot of money on different plant micro nutrient blends and hyped up products by top lawncare youtube influencers. Extreme blend does everything those products do (or more) at a fraction of the price.
    The only other product I need is a main source of fertilzer for macro nutrients NPK. And maybe some iron….but extreme blends kelp has iron, and did green up the grass in a great way but it might be from all the nutrients together. I like having iron itself for the occasional show off the lawn weekend during family gatherings. Nutrients make the lawn a healthy lush green, iron can make a healthy lawn look ridiculously beyond normal dark green (which is very nice on occasion)

  31. MERLIN (verified owner)

    I’ve been using Extreme Blend for several years now, I have the best plants in the State now! I use this and pure nitrogen additive during grow season, then this slowly increased to my harvest. This is absolutely the best there is, please don’t ever alter this mix! Thank You Kelp 4 Less!

  32. Harley (verified owner)

    Great stuff. It works well as a foliar spray.
    It dissolved quickly and ready to use in about 1 minute

  33. jimmyb (verified owner)

    Fantastic product – does wonders for my lawn!

  34. Kim Masse

    I called for some advice as to what I could use to wake up the trees and shrubs in the yard after a long winter, was told to use this stuff. Been using it ever since with super results.

  35. Eric P (verified owner)

    High quality product. I do wish there were more info on the label for those of us who backpack spray turf. I’ve done about 1-2 tablespoons per 1000 but I think the correct amount would be even more. Just not sure.

  36. scign84 (verified owner)

    Don’t be turned off by the price, this stuff can be a game-changer. Faster growth and higher yields!

  37. Leann W

    This stuff is amazing! My peonies are huge this year! My plants are loving this stuff! A++++ Fantastic company and products!

  38. Jordon H (verified owner)

    One of the greats no doubt, instant plant response, the best grow booster I have ever used hands down. A must have for any and all plants “don’t be missing out” get some and use it, you won’t be disappointed.

  39. Ben Salvio (verified owner)

    I use this on my plants and my lawn. Wow is all I can say. It is one of the best products I have ever used.

  40. MERLIN (verified owner)

    I have used extreme blend for many years. It increases vitality and the growth and the harvest. Truly the best there is!

  41. tdhoover123 (verified owner)


  42. angelandkisa (verified owner)

    I have been using kelp4less products for about 5 years now. I should have started watching your videos years ago.
    Holy Canoli!!! I have been getting lucky with my girls! I have never watched video so I did not know to make a concentrate and I have been doing one tsp (of dry product)per gallon of water .. I have always foliar sprayed but again not pre mixing making concentrate. Good to know I can use a lot less and (hopefully) get the same results. it is august 16th and my girls are over 81/2 ft tall. yes with beautiful buds
    These guys are most amazing and very helpful.

  43. tlm_inc (verified owner)

    First of all, Customer Service is awesome! I called Colorado CS and Ernesto answered all my concerns and questions with patience and in detail. This is very rare in todays businesses. Communication is key to success! Extreme Blend is awesome at its recommended rate. I will definitely be recommending it to friends and family.

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