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Coco peat particles with a fine, powdery texture, offering excellent water retention.

Coconut coir brick, also known simply as coir brick, is a natural and sustainable growing medium derived from the husks of coconuts. These bricks are increasingly popular among gardeners and horticulturists for their versatility, eco-friendliness, and excellent water retention properties.

Introduction to Coconut Coir Brick

Coconut coir brick serves as an alternative to traditional soil amendments like peat moss or perlite. It is gaining traction due to its renewable nature and numerous benefits for plants and the environment.

What is Coconut Coir?

Coconut coir is the fibrous material found between the hard, internal shell and the outer coat of a coconut. It is a natural byproduct of the coconut industry, typically discarded or burned. However, it has found various applications, including as a growing medium in agriculture and horticulture.

How is Coconut Coir Brick Made?

Harvesting Coconut Husks

Strawberries growing in coco coir bricks
by CVM Coir Substrates

Coconut coir is obtained by soaking the husks of coconuts in water to soften them, followed by mechanical or manual extraction of the fibers.

Extracting Fibers

Once the fibers are separated from the husks, they are cleaned and sorted to remove impurities.

Processing into Bricks

The cleaned fibers are compressed into brick-shaped blocks for easy handling and transportation. These bricks are then dried, ensuring they remain lightweight and compact.

Coco Coir has a longer lifespan than some other hydroponic media,

CVM Coir Substrates

Benefits of Coconut Coir Brick

Environmentally Friendly

Coconut coir is a renewable resource, making it a sustainable choice for gardeners concerned about environmental impact.

Sustainable Alternative

Unlike peat moss, which is harvested from non-renewable peat bogs, coconut coir is derived from a waste product of the coconut industry, reducing the need for new materials.

Excellent Water Retention

Coconut coir has superior water retention properties, ensuring plants receive adequate moisture even in drought conditions.

pH Neutral

Coconut coir is pH neutral, providing an ideal growing environment for a wide range of plants without the need for additional amendments.

Resistant to Mold and Pests

Coconut coir is naturally resistant to mold and pests, reducing the risk of plant diseases and infestations.

How to Use Coconut Coir Brick


To use coconut coir brick, simply soak it in water until it expands and becomes fluffy.

Expansion Process

The brick will expand several times its original size, ready to be used as a growing medium.

Mixing with Soil

Coconut coir can be mixed with soil or used alone, depending on the specific requirements of the plants being grown.

How long does it take for a coconut coir brick to expand?

Typically, it takes about 30 minutes to an hour for a coconut coir brick to fully expand when soaked in water.

Can coconut coir brick be reused?

Yes, coconut coir brick can be reused multiple times after proper sterilization and rehydration.

Does coconut coir brick attract pests?

No, coconut coir is naturally resistant to pests and does not attract them.

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