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Best Coco Coir for Hydroponics

Coconut husks and shells are ground into a fine powder to create Coco Coir (coconut fiber).

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The coconut fiber is extracted from the husk that surrounds the coconut. Its ability to wick away moisture and inhibit the growth of bacteria has made it a common ingredient in household items such as brushes, doormats, floor mats, and even mattresses.

Coco Coir is a growing medium for your seeds or seedlings, whether you are an urban gardener, an organic gardener, or a hydroponic grower. This is due to the high moisture and nutrient content of coco coir.

You will reap the benefits of coconut coir if you incorporate it into your gardening routine, which results in healthy and happy plants. Some of the best Coco Coir available for purchase today will be examined in this article.

Our choice for Best Coco Coir for hydroponics

Editor’s Choice: Harris Coconut Coir Pith

Harris Coconut Coir Pith Review

  • Manufacturer: Harris
  • Weight: 5.57 pounds
  • Dimensions: 8 x 4 x 8 inches

Harris Coco Coir is beneficial to the development of strong roots. If you want the nutrients to be distributed evenly throughout the soil or potting mix, use this as an additive. The addition of coco coir fiber to soil enables the soil to take on a more spongy and loose consistency by virtue of the coir’s characteristic fluffy texture.

Because it can absorb up to ten times its own weight in water, it makes maintaining adequate root hydration much simpler than ever before. Coir is an extremely versatile material that can be used for anything from growing plants in indoor pots to cultivating soil in an outdoor garden.

When you are ready to use the coir, soak one of the bricks in warm water so that the water can penetrate through the fibers. The coir brick will begin to absorb the water and expand as more water is added to the mixture.

Remember that this will balloon up to at least eight times its original size when it dries out. After the excess water has been drained off, you can use a trowel or your hands to separate the expanded fibers and get the desired quantity.

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  • Enhances the flow of air
  • Contributes to the preserving of moisture
  • For organic gardening
  • Fosters the development of strong roots


  • Given the price, the cubes may not expand as much as desired

Runner-up: Burpee Organic Coconut Coir

Burpee Organic Coconut Coir

  • Manufacturer: Burpee
  • Weight: 2.2 pounds
  • Dimensions: 7.25 x 4 x 6 inches

Burpee Eco-Friendly Natural and Organic Coco Coir is an excellent soil amendment that includes garden coir for organic and conventional gardening. On the contrary, sphagnum peat moss can be replenished endlessly, whereas coconut coir is a regenerative, long-term energy source.

Adding Burpee Coconut Coir to your custom blends of nutrients and other ingredients can help you grow plants in raised garden beds, containers, hydroponics, and different environments. The addition of Burpee Coconut Coir to your nutrient and other ingredient blends can also benefit growing plants in other settings.

Burpee Coconut Coir As a medium for growing a wide variety of plants, Burpee Coconut Coir retains and releases moisture to the plant’s root system, and it can hold up to 150 percent of its weight in water. Horticulturally, it’s an excellent medium to use.

Thus, the plant will benefit significantly from adding nutrients in the form of an amendment to nutrient-rich soil. Aeration and drainage are enhanced around plants when Burpee Coconut Coir is used, which generally benefits plant growth and health.


  • Coconut fiber is a renewable soil amendment
  • Greater root growth through aeration
  • Good water retention and easy rehydration
  • It’s ideal for hydroponics and seed starting


  • May not be ideal for adult plants

Best Value for Money: Mother Earth Coco Bale

Mother Earth Coco Bale Review

  • Manufacturer: ​​Sunlight Supply Inc.
  • Weight: 10.72 pounds
  • Dimensions: 6.6 x 12.7 x 13.2 inches

In the production of Mother Earth Coco Bale, all of the coco fiber used was sourced from sustainable sources. It is possible to create an alternative to soil with an exceptional capacity for holding water while also maintaining high porosity and the ability to drain well by combining coco pith with fibers of various lengths and thicknesses.

Using this alternative can be used in a variety of ways. This substitute for soil has the potential to be used in a wide range of agricultural applications. They have been washed and contain a lower salt concentration than other coco flakes sold by Mother Earth, so they’re so popular with consumers.

After being exposed to air for a short time, this item’s compression ratio allows it to expand to about 60 liters of additional volume. The compression ratio of this item will return to its original value once it is exposed to the air.


  • Produced from natural Coco Fiber
  • Large capacity for holding water
  • High porosity and drainage properties


  • Absorption of water takes a long time.

Alternative 1: Kempf Compressed Coco Coir Pith Block

Kempf Compressed Coco Coir Pith Block Review

  • Manufaturer: William F. Kempf & Son Inc.
  • Weight: 10 pounds
  • Dimensions: 11 x 11 x 5 inches

Growth rates in Kempf Compressed Coco Coir Pith Blocks are significantly higher than those of plants grown in conventional soil. Compare the two types of plant growth, and you’ll see the difference I mentioned earlier. The observed effect is due to the block’s ability to aid in the development of strong root systems in a wide range of plant species.

Pith can hold up to eight times its volume in water, making it an excellent soil conditioner with a high water retention rate. As a result, pith is an excellent candidate for use as a water-retention substance. You can find citrus fruit pith as well as other produce in the core of the fruit or vegetable.

Natural and organic materials are used in the Kempf Compressed Coco Coir Pith Block, which can be expanded to make 17 gallons of potting mix per block. It’s possible to buy the blocks individually or in bulk. This is also good for the environment because it doesn’t harm the surrounding area.


  • Allows for the development of strong roots in all plants
  • High capacity for retaining water
  • Natural, organic, and friendly to the environment, one hundred percent


  • The quality is about par for the course

Alternative 2: Coco Bliss Premium Coco Coir Brick

Coco Bliss Premium Coco Coir Brick Review

  • Manufacturer: Plantonix
  • Weight: 8.8 ounces
  • Dimensions: 6 x 6 x 1 inches

Coco Bliss Coconut Coir is a byproduct of the harvesting of coconuts. It is 100% natural. Coconut husk fibers are used to make coir, a coarse fiber extracted from the outer shell of a coconut. In addition to its superior water holding capacity, Coco Bliss Coconut Coir has a high ability for air circulation and drainage.

If you’re looking for an environmentally friendly alternative to peat moss for your potted plants, containers, and gardens, this is what you should go for. Unlike peat moss, Coco Bliss Coconut Coir can be hydrated more efficiently and last longer in soil, all while not destroying natural peat bogs, pH 5.8–6.8 means it’s in the neutral range. Hard clay soils can be broken up and nutrients better utilized with the help of this technique.

An excellent growing medium for gardens, planters, and raised beds can be created by adding one part compost to two parts soil or potting mix. It’s easy to store Coco Bliss Coconut Coir in 250 gm bricks because they’re compressed into one piece. This brick must be soaked for at least an hour in water before use.

Coco Bliss Coconut Coir is a fully hydrated brick that can hold up to ten times its volume in water. The final expanded coir volume is determined by the water content used in its preparation. This Coco coir reduces the risk of salt buildup in your soil because it has been thoroughly washed several times.


  • OMRI Approved, 100% Natural & Organic
  • Coconut coir of the highest quality, with low EC and pH values
  • Drainage and aeration are provided in abundance
  • Exceptional quality and low salt content


  • It does the job, but it’s much smaller than expected

Alternative 3: Coco Coir Mega Brick

Coco Coir Mega Brick Review

  • Manufacturer: NUTRIFIELD
  • Weight: 11.68 pounds
  • Dimensions: 12.71 x 12.4 x 5.08 inches

The Coco Brick and Mega Brick from Nutrifield are blocks of compressed premium coir that are lightweight and transportable. These masonry units are available in two distinct varieties. When exposed to water, these bricks transform into the well-known RHP-certified product known as Nutrifield Coco Premium.

The original product’s exceptional liquid retention and friability are also present in this variant. The RHP certification guarantees that the coir will maintain a high level of consistency and quality, be free of pests and diseases, have a stabilized pH, be pre-buffered with calcium, and have a very low salt index.

In addition to these qualities, the RHP certification guarantees that the coir is pest and disease-free. The Coco Brick and the Mega Brick can expand, with the Coco Brick producing up to 9 liters of fresh, ready-to-use cocoa and the Mega Brick producing up to 55 liters.


  • Low salt content Coconut Coir with Calcium Pre-Buffered
  • RHP certification guarantees high coir quality and consistency
  • Water-retention capacity is high
  • Gardeners can feed their plants less frequently


  • It may not be a good value for the money.

Alternative 4: Thunder Acres Coco Coir Brick

Thunder Acres Coco Coir Brick Review

  • Manufacturer: Thunder Acres
  • Weight: 8.8 ounces
  • Dimensions: 8.31 x 4.02 x 2.72 inches

The coir that Thunder Acres sells is delivered to customers in bricks weighing 1.5 pounds each that have been compressed for easy and efficient storage. When completely hydrated, a brick can hold eight to ten times its own volume in water.

It has a neutral pH range of 5.8–6.8 and can break up hard clay soils, allowing nutrients to be used more efficiently. It can be used as a soil amendment for potted plants, containers, and gardens and is a more eco-friendly and sustainable alternative to peat moss. Before using a brick, you must wet it with water and allow it to sit for at least twenty minutes.

Coir occupies more space in the soil and decomposes more slowly than peat moss, but it is initially easier to work with peat moss. It is possible to create a high-quality growing medium for gardens, planters, and raised beds by combining one part coir with two parts compost-containing soil or potting mix.


  • Coir is an excellent germination medium and a soil amendment.
  • Easy to break up, and it expands quickly to its full volume
  • Bricks that are extremely light in weight.


  • When soaked in water, it does not grow much larger

Alternative 5: Green Dream Premium Coco Coir Brick

Green Dream Premium Coco Coir Brick Review

  • Manufacturer: Green Dream
  • Weight: 10.69 pounds
  • Dimensions: 15.79 x 14.48 x 5.67 inches

This coco coir is excellent for sprouting, as it is an excellent medium for retaining moisture in newly planted seeds and new plants, and for achieving a high rate of germination in the plants that you are growing. The coco coir is sold in a block weighing 11 pounds, and once it has been moistened, the block can be torn into smaller pieces because it will expand.

My experience has shown that it is also useful in the garden because, when combined with garden soil, it makes it easier to drain water while also helping to keep the soil moist.

When added to some loamy soil around roses in the yard, it does expand to about five times the size of the brick. We will have to wait and see what the results are. Simply add about three to four gallons of water to the brick, and then let it sit undisturbed for a couple of hours or even a full day. When time is of the essence, dismantling the brick can be a laborious process.


  • A fantastic garden addition for a reasonable price
  • Using it is a breeze
  • Nicely expands
  • Courses are self-renewing


  • Not easily disassembled into smaller pieces

Coco coir for hydroponics FAQ

Is coco coir good for hydroponics?

Coconut coir for hydroponics

Coco coir has been used for decades, but its popularity in hydroponics farming has recently increased. It is a growing medium that resembles soil but is made of coconut husks. The rope-like outer fibers that cover coconuts are fruit residue unfit for consumption.

However, those husks serve as an excellent growing medium and provide numerous benefits that make them suitable for hydroponics. Coco coir is a versatile and natural product known as coco peat or simply coco. Farmers appreciate that it is a sterile medium that does not contain harmful bacteria or fungi, making it ideal for hydroponics. Coco coir is extremely simple and does not require religious monitoring like other growing mediums.

Coconuts are primarily found in tropical areas near bodies of water. They frequently fall into such bodies of water, but the coconut’s outer husky layer protects their seed. The husk thus protects the inside and serves as a fertile medium for the seed to germinate. As a result, coco coir is an ideal medium for hydroponics.

What coco coir should I buy?

Coco coir comprises three parts of the coconut: coco chips, coco pith, and fiber. The pith looks like peat moss and is highly absorbent. Before purchasing coco coir, make sure the pith has aged sufficiently to be used as a growing medium. If the pith is not aged correctly, it can release salts that can harm or wilt your plants.

It is critical to select a coco coir manufacturer who is open about their product information and has properly aged the pith. Buyers should purchase a bag of coco coir that contains the optimal combination of those three components. Good quality coir is always harvested and processed correctly.

Choose sellers who ethically reveal the backstage life of the coco coir. Individuals should buy coir from manufacturers who do not store it in conditions that allow pathogens to breed. It would prevent one from witnessing their beloved plants die suddenly and unexpectedly due to bacterial or parasitic attacks. B

efore adding coir to a hydroponic system, it must be rinsed and washed to remove harmful salts. Finally, the manufacturer should adequately package and store it. As a result, one must select a supplier who is open about their entire process, from production to shipping, and who has earned community trust for the products they sell.

How long does coco coir last?

Coco coir fibers are cellulose with high lignin content. The component that gives coir its rigidity and woodiness is lignin. Decomposition of coco coir containing 45 to 50% lignin takes longer. In general, coco coir is highly durable and has a long lifespan. Its life, however, is also determined by its age and shape.

A good quality coconut coir will typically last four years before decomposing. Coconut husk that has been pre-composting will last for approximately four years without shrinkage or compaction, whereas husk that has not been composted will last for one and a half to two years.

If there is less fiber and more pulp in the coco coir, it will undoubtedly have a shorter life. Coarse coir will always outlast fine coir because the latter decomposes quickly due to its fine texture, whereas coarse fibers decompose slowly.

What are the benefits of coco coir?

What are the benefits of coconut coir

Ample drainage

Coco coir provides ideal drainage conditions for the plant, further reducing waterlogging. When the conditions are unfavorable for waterlogging, there are fewer chances of root rot. When farmers add coco coir to their hydroponic system, they can be relatively less anxious about overwatering or root rot.


Coco coir is an affordable product and would not burn holes in one’s pockets. When compared to the prices of peat moss, the prices of coco coir are far more affordable, making it a reliable yet inexpensive growing medium.

Neutral pH

One of the most compelling and valuable advantages of using coco coir is its neutral pH, which does not negatively impact the plant’s living conditions. The competitor of coco coir- peat moss, is slightly acidic, making it a less suitable option when compared to coco coir. Thus, plants that cannot tolerate acidic conditions should always be paired with coco coir.

Healthy root growths

Coco coir is airy and gives the plant roots ample space to grow and occupy their own space. It allows the roots to get more air and oxygen, ultimately promoting their expansion.

Easy disposal

Unlike chemical additives, coco coir is an entirely natural product; therefore, one does not need to adhere to particular disposal guidelines. In addition, it also disintegrates very quickly, leaving no hazardous remnants.

Environment friendly

Coco coir is a renewable medium, making it more environmentally friendly than non-renewable peat moss. It is a waste product of coconut, and its usage contributes to the overall sustainability of the practice. Contrastingly, peat is derived from bogs, an exceedingly significant habitat for various organisms. The process of peat formation is tediously long, and its collection may threaten the native species living in the bog habitat.

Ease of transportation

Coco coir is magically easy to transport as it can be compressed and shipped in the form of bricks, taking up less space for a significant quantity. These bricks are generally lightweight and easy to maneuver for the manufacturer and farmers. Their lightness and ease of transportation mean that they can also be delivered online over long distances, increasing their availability even in remote areas.

Germ-free and recyclable

One can use coco coir without second thoughts as it’s free of pathogens, pests, or parasites. Moreover, coco coir is also recyclable. If used to grow saplings, one can reuse them for mulching the transplants.

High quantity of lignin

Lignin is the component responsible for providing rigidity and woodiness to the coconut fiber. The increased lignin level in coco coir makes it a fertile ground for good bacteria and protects against harmful pathogens. Its repulsion of pathogens makes coco coir a naturally ideal medium for most setups, including hydroponics.

High nutrient retention

Coco coir can retain more nutrients compared to other mediums. Moreover, it can also hold more moisture in large quantities and longer duration.


The natural ability of coco coir to provide an ideal breeding ground for beneficial microorganisms, such as bacteria and fungi, is one of its most significant advantages.

Unfortunately, the coco coir you receive does not contain these microorganisms by default. These microorganisms must be introduced to your system via supplements or organic nutrients and fertilizers. To further promote the growth of microorganisms in your soil, try adding earthworm casting to the mixture.

Our goal in writing this article was to provide you with information that you can use to make an informed decision about what to buy for your hydroponic garden.

I am a gardening and tech enthusiast! Stumbling across the world of Hydroponics, Aquaponics and Aeroponics by accident I've decided to create TheHydroponicsPlanet to put all of the best information I can find in one easy to navigate place. I'll continue to add more content as I discover new things!

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