Buffered Coco brick - Safeguard

R154 - R154


Coir substrate is an organic and naturally occurring product used mainly as a growing media or soilless substrate for horticultural applications. Derived from the external husk (mesocarp) of a coconut, it is an environmentally renewable product which was originally a bi-product of the coir fiber industry.

Fully certified and traceable, our product offers guaranteed performance, consistent quality and low ionic content.

Coco Peat increases the porosity of your potting mix, which helps to keep soil loose and airy, aiding in better root growth. Better root growth results in better plant growth, happier plants and higher yields.

Coco Peat is a great base to start with as a growing medium. Add an array of organic amendments and additives to get your own super soil going. 



  • Odourless
  • Cost effective grow medium
  • Bi-product of another industry
  • Neutral pH level range of 5.4-6.8
  • Very porous and aids in soil aeration
  • Holds water very well
  • Sterile and free of bacteria, fungi and pests
  • Decomposes and breaks down slowly, can be re-used several times between cycles
  • ISO9001:2015 certified
  • Approved by EcoCert (ECOCERT is a very strict international standard for organic products, which independently audits our facilities regularly to ensure that the product is fully traceable and compliant with the organic standard)
  • OMRI registered. (Allows for the sale of crops grown on our substrates to be sold as organic in markets, such as the USA)



  • pH (1:1.5): 5.4-6.8
  • EC (1:1.5): <0.5
  • Sodium -  Na (mg/l): <120
  • Potassium – K (mg/l): <200
  • Weight: 4.5kg (+/- 0.2kg)
  • Volume: 70L (+/- 7.5L)

Indoor/FM brick (Original)

  • Mix: FM
  • 20% Fiber removed (FM)
  • Makes for a good seed starter or for very fast synthetic/salt-based growing
  • Recommended for:
    • Indoor growing
    • synthetic/salt-based growing
    • Seedlings

Outdoor/02 brick

  • Mix: 02
  • Holds its structure better in larger volumes and decomposes slower which gives it a longer "life-span"
  • Recommended for
    • Outdoor growing
    • Organic growing



Safeguard™ is the next generation of crop protection within substrates, which provides you with assurance on your crop’s performance. Safeguard™ range of treatment options is tailored to suit all crop stages and budgets, offering growers and propagators cost-benefit options to suit their specific circumstances.

 Organic Buffered cocopeat bricks

How to use

Organic soil & hydro rehydration

  1. Start with a large plastic container of a minimum of 50L, preferably 100L. We recommend an Addis container or alternatively a large outdoor bin/large cardboard box - we will happily supply free of charge on request. This will be used to expand the coco peat brick. 
  2. Next, place your coco peat brick in the center of the container and add 25L of water. Wait approximately 10 minutes for the water to be absorbed.
  3. Once the water is absorbed, either hand mix or use a spade to ensure that the mixture is homogeneous and that there is no remaining dry coco peat.
  4. Finally, the coco peat is hydrated and is ready for your plants. You are now finally ready to add your organic amendments and additives.

Buffering is done by experts in the industry, so you do not need to stress about it.



What's the difference between washed and buffered coco peat?

Washed cocopeat has been washed using clean, natural spring/rain water to lower the EC level (Electrical Conductivity) in the coco coir.

Washing gets rid of built-up water-soluble elements, like sodium and potassium (the reason EC is high). Due to the resistance of some of the bonds made between the ions and the media, washing cannot eliminate all of the salt in the coco coir.

An unbuffered coco coir might cause nutrient lock out of calcium and magnesium (Calmag) because the coco substrates have a stronger attraction to these 2 salts compared to potassium and sodium. As a result, sodium and potassium will be displaced into the solution and sucked up by the roots of your plants.

Buffered cocopeat has been treated to reduce the Potassium and Sodium Chloride levels, and to increase the Nitrogen level. It also has a lower EC level than the Washed coco coir.

Buffered coco coir is buffered with calcium and magnesium until saturation. It ensures that when you add a base nutrient all the nutrients are deposited for the plant to use and not for the media to hold on to. Buffering reverses the bonds that were made between the media and the salts, releasing the potassium and the sodium.

Calcium is crucial for a plant’s growth and is involved in almost every aspect of a plant’s development.

Please Note:

Our 4.5kg compressed brick will expand to between 62.5 and 77.5L of growing media when 25L of water is added to it.

Why does your brick come in 4.5kg and not the standard 5kg?

Lower grades of "5kg" bricks in the market will not produce as much substrate once expanded as our 4.5kg brick. This is because Cocogreen (our manufacturer) removes the excess "dust" leaving you with only valuable substrate. Most manufactures leaves this dust on which increases the weight and hence perceived value. We urge you to do the test - you would be surprised!

Coco peat can be re-used up to three times with little loss of yield. Coco peat from diseased plants should not be re-used.


For placement of large orders or other Cocogreen products please contact us at: office@greenhouston.co.za