Best Coco Coir For Microgreens

<a href=''>Jon Smith</a>Jon Smith
March 27, 2022

When you shop for coco coir, you will often find it in dense blocks. When warm water is added to the compressed coco coir, it greatly expands becoming a light, fluffy growing medium. Coco coir is a neutral pH, a fine-grained growing medium that is a perfect choice for microgreen growers.

What Is Coco Coir?

Coco coir is a renewable resource created from the outer layer of coconut. The fibrous material includes everything from the hard outer shell to the inner shell.

Before the coir is ready for use, it has to be removed from the coconut. The husks are soaked in either seawater or freshwater. After soaking, the coir is removed from the water and allowed to dry for a year or more. After it has been dried, it is ground and processed into the blocks of coco coir sold as a growing medium.

There are two different types of coco coir – brown and white. The different colors have different textures, durability, and uses. Brown coco coir comes from ripe coconuts. This type of coco coir is strong, yet it is much less flexible. White coco coir comes from unripe coconuts. This type of coco coir is not as strong as brown coco coir, yet it is much more flexible. Typically, brown coir is used for growing microgreens.

Benefits of Coco Coir for Microgreens

Coco coir is a soilless growing medium that offers many benefits for microgreen growing. Let's take a look at the top benefits of coco coir.

Improved Drainage and Moisture Retention

Many people are confused when they hear that coco coir has improved drainage while retaining the moisture microgreens need. The coco coir fibers are long and create air pockets which helps water drain from the microgreen roots and prevents root rot.

Does Not Compact Easily

Many seed starting soils compact easily, making it difficult for microgreens to take root. Coco coir is soft, does not compact easily, and is fluffy. This makes it a great choice for tiny microgreen seedlings that are trying to establish healthy roots.


Coconut fibers contain high amounts of lignin, which increases the life expectancy of your coco coir. Coco coir can be reused after you have harvested your microgreens if you remove the roots and then thoroughly rinse your coco coir to remove any excess salts.

Environmentally Friendly Growing Medium

Coconut coir is an environmentally friendly growing medium. Because coco coir is created from the husks of coconuts, it is sustainable. Furthermore, what was once considered waste can now be used as a growing medium. Finally, coco coir can be reused as long as it is rinsed so any salts are removed.

Neutral pH

The pH of your soil can affect the growth of your microgreens. If the pH is too low or too high, it can reduce crop size and impact your microgreens' health. Coconut coir has a pH level of 5 to 7. Microgreens grow best in growing mediums with a pH of 6 to 7; therefore, coco coir is a great growing medium for your microgreens.

Top 4 Coco Coir Products for Microgreens

Now that you know the benefits that coco coir offers, it's time to discover the best coco coir for microgreens. Each of these products has unique features that should be explored.

Mother Earth Products Coco + Perlite

Mother Earth Products Coco + Perlite Growing Medium is a wonderful microgreen growing medium comprised of 70 percent coconut coir and 30 percent perlite. This combination was developed for potted plants; however, it can be used for microgreen gardening.

Mother Earth Products Coco + Perlite - Growing Media for Containers, 1.8 cu. ft, Brown, 50 Liter
  • Plant growing media that is a great alternative to potting soil and other traditional growing media
  • Incorporates 70% coconut coir as well as 30% perlite for better aeration and drainage
  • Resists compaction and last longer in containers
  • For indoor and outdoor containers
  • Safe for all plant types

Zee Dix Compressed Coco Coir Pellet Fiber Seed Starting Medium

Created using raw coconut coir, these pellets are a little over 1 inch in diameter. Although small, these discs will provide you with a plethora of light, airy soilless growing medium once water is added. Coco coir pellets are easy to store and provide the perfect growing medium for microgreens.

ZeeDix 100 Pcs (30mm) Compressed Coco Coir Fiber Potting Soil Seed Starters - Organic Coco Coir Pellet Fiber Soil for Planting Bonsai, Herbs, Plants, Flowers and Vegetables
  • Small body, big function: 30mm Coco coir fiber grow round block, 100pcs/paper box, it is suitable for different plants' growth, succulent plants, flowers, herbs and so on.
  • Material: Sustainable raw coconut coir, environment friendly, which can provide sufficient oxygen and moisture, also you can use it to grow the seeds of vegetables. It is clean and will not make the dirty.
  • Easy to use:Light and small but with water became a big pile, compact and Rehydrates quickly, so it is easy to use, you can put them in the container and add water together, then you can put it in the flower pot or plant pot to use, also it is very convenient to carry.
  • Longer plant life: It can provide abundant oxygen and moisture to the plant to ensure a long lasting, safe and healthy plant life. Plants can have a comfortable growing environment.
  • Application: Ideal for any kind of gardener. Suitable for growing seeds, indoor garden, herbs' growth, flowers and plants' growth. It can be used for indoor plants, garden flowers, herbs.

Burpee Organic Coconut Coir Concentrated Seed Starting Mix

This organic coco coir brick expands to an amazing 16 quarts of coconut coir when 4.5 quarts of water is added to the brick. The coconut coir is perfect for microgreen root growth and also helps with the absorption of nutrients.

Burpee Organic Coconut Coir Concentrated Seed Starting Mix, 16 Quart
  • ORGANIC COCONUT COIR: Made from recycled coconut husks, coir is a light, sustainable growing medium that holds the perfect amount of moisture for starting seeds. 100% biodegradable soil alternative. Environmentally-friendly and a renewable alternative to peat moss. OMRI listed and certified organic.
  • IDEAL GROWING MIX: Improve seed germination and root growth with this premium coconut fiber mix, which improves nutrients absorption! Great for flower, vegetable, herb & more plant types. OMRI listed. Naturally disease and pathogen resistant, it will help you grow healthy live plants.
  • EASY TO STORE & EXPAND: Each compact coconut coir brick expands into 8 quarts of seed starting mix, providing 16 quarts total. Just add water to expand! Dehydrated bricks save space until planting. Once expanded, coconut coir provides a quality growing medium for all types of plants - indoor plants, house plants, outdoor plants, and more!
  • NATURALLY CONSERVES WATER: Renewable coco coir has excellent moisture retention and better air circulation than peat. This eco-friendly, premium seeds starting mix combines well with other potting soil and compost for container plants & raised beds.
  • 100% GUARANTEED: Burpee is committed to the success of all gardeners. We treat each order with care to ensure healthy seeds, plants, soil mixes & gardening supplies are sent in excellent condition. If you are unsatisfied with your purchase, we aim to make it right!

Final Thoughts

Microgreen growers around the world have embraced coconut coir and declared it as the growing medium of choice for microgreens. This environmentally and ecologically friendly soilless growing medium is affordable.

Because of its ability to hold water while providing excellent drainage, coco coir is the preferred choice of growing medium for microgreen growers looking for a pH neutral, fine-grained growing medium.

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About The Author
I have been growing microgreens for myself and others for quite some time now and I absolutely love the process.

Even more I love spreading awareness of an amazing crop that has so many nutritional benefits for our bodies which improve our overall health and wellbeing.

Jon Smith

Copyright 2021 All Rights Reserved!

As an Amazon Associate I earn from qualifying purchases.