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Kelp Flakes

R62 - R1 080


Kelp Flakes are made from 100% pure sundried Ecklonia maxima milled to a 2-3mm dried flake.

Commonly known as brown seaweed, it is gathered on the West Coast of South Africa after being fed by the nutrient rich cold Benguela current that runs north from the Antarctic.

Ecklonia Maxima contains micro, and macro nutrients, Nitrogen (N), Phosphorus (P) and Potassium (K) and the full range of amino acids. As well as this, natural growth hormones, auxins and cytokinins which are present, are easily taken up by land plants. Kelp Flakes are a great organic amendment to prepare your super soil. 

As an application to improve soil quality, Kelp Flakes build up the humus structure of the soil and provides vitamins and micro and macro nutrients as an effective crop feed. It breaks down over time resulting in long lasting plant food for healthier soil and plants.


Growth Hormones 

Perhaps the most important aspect of kelp is the growth hormones. Kelp contains ample quantities of auxins, gibberellins, and cytokinins. All growth hormones play a part in how a plant functions, and are more accurately called growth regulators.

Kelp has very high amounts of a particular hormone, cytokinin. Cytokinins are responsible for cell division, cell enlargement, differentiation of cells, development of chloroplasts as well as a delay in ageing.

When kelp is used regularly you will notice that the overall health of the plant will increase and that when applied at certain times major growth will occur.


Great Source of Potassium (K)

A major nutrient group (NPK) needed in the whole life cycle of the plants in the vegetative and flowering stage.

    Benefits List

    • Rich in Potassium (K) 
    • Growth Hormones - Contains ample quantities of auxins, gibberellins and cytokinins.
    • Contains Mannitol - a great chelator (makes nutrients bioavailable)
    • Contains over 60 essential elements
    • Increased nutrient uptake in plants
    • Stronger root and leaf growth
    • Increased microbial activity in soil
    • Faster rooting & Improved seed germination
    • Higher marketable yields
    • Improved soil health
    • Builds up humus
    • Slow release plant food
    • Provides macro and micro nutrients
    • Improved disease and pest resistance
    • Improved water retention
    • Counter nearly any nutrient deficiencies



    Per kg of Kelp Flakes:

    • Phosphorus (P) 17.27g
    • Potassium (K) 40.84g
    • Sulfur (S) 9.41g
    • Magnesium (Mg) 8g
    • Iron (Fe) 94.62 mg
    • Manganese (Mn) 25.14 mg
    • Copper (Cu) < 1 mg
    • Zinc (Zn) 11.59 mg
    • Boron (B) 111.9 mg
    • Molybdenum (Mo) < 1 mg


    How to use

    5ml = 1 teaspoon | 15ml = 1 Tablespoon | 240ml = 1 Cup

    Organic Amendment


    Soil Mix

    • Dosage:
      • 12ml Kelp Flakes per 1L substrate
      • 360ml Kelp Flakes per 30L substrate
    • Frequency: When mixing/revitalizing a substrate
    • Application: 
      • Get a container or set a tarp on the ground.
      • Add the substrate, Kelp Flakes and other organic soil amendments.
      • Mix well and water lightly.
      • Cover the soil to avoid pests and keep soil from drying out.
      • Recommended to let the soil sit for approx. 2 months before use.

    Top Dressing

    • Dosage:
      • 3ml Kelp Flakes per 1L substrate
      • 90ml Kelp Flakes per 30L substrate
    • Frequency: Apply every 3 weeks before a watering
    • Application: 
      • Evenly distributed on top of the substrate.
      • Follow with a normal watering. Always use dechlorinated water for organics.
      • Can top dress with other organic soil amendments at the same time.

    Garden Bed Amendment

    • Dosage: 240ml - 480ml Kelp Flakes per m2 of garden bed
    • Frequency: Applied every 6-8 weeks
    • Application: 
      • Evenly distributed on top of the soil.
      • Follow with a normal watering. Always use dechlorinated water for organics.
      • Can top dress with other organic soil amendments at the same time.


    • Dosage: Use approx. 5kg Kelp Flakes per m³
    • Not more than 2% of total volume.
    • Activate with composting soil microbes: Byodyne Environoc 501.

    Worm Bin

    • Feed your worms some Kelp Flakes: The worms and microbes turn the kelp into a form the plant can use it, which helps produce some of the highest quality worm castings. What you put in is what you get out.

      1L of Kelp Flakes (approx. 650g)


      For placement of large orders contact us at: office@greenhouston.co.za