Comparison: Best Coco Coir Compost Mix (Updated | Nov 11th)
If you’re on the hunt for the **best coco coir compost mix**, you’re not alone—gardeners everywhere are swapping traditional soil for this sustainable, root-loving alternative. But with so many blends out there, how do you know which one truly delivers? We’ve dug into the details, tested popular options, and compared water retention, nutrient content, and ease of use so you don’t have to guess.
Editor’s Choice
Best for a specific purpose
- Best for 10-pack convenience: Coco Coir 650gm Bricks (10-Pack) – Organic Coco Coir for Plants – OMRI-Listed Cocopeat Bricks for Garden Soil & Potting Mixes – Coconut Fiber Mixes with Potting Soil for Indoor & Outdoor Plants
- Best for bulk eco blend: Coco Bliss (10lbs) – Organic Coco Coir for Plants – OMRI-Listed Coco Coir Brick for Garden Soil & Potting Mixes – Coconut Fiber Substrate Mixes with Potting Soil for Indoor Plants & Outdoor Plants
- Best for compact duo: ZeeDix 2 Pcs Coco Coir Brick for Plants- 100% Organic Coconut Coir for Garden Soil & Potting Mix
- Best for buffered starter: AC Infinity Instant Potting Mix
- Best for four-pack power: Legigo 4 Pack Premium Coco Coir Brick for Plants- 100% Organic Compressed Coconut Coir Bricks Starting Mix
- Best for high-volume growth: Growbycoco Coco Coir Brick(11lbs) – Premium Organic Coco Peat Brick for Garden Soil & Potting Mixes-Coconut Fiber Substrate Mixes with Potting Soil for Indoor Plants & Outdoor Plants -19 Gallons
- Best for all-in-one blend: Organic Mechanics 110 Blend Organic Potting Soil – 1.76 Cu Ft | Peat-Free Mix with Biochar
- Best for coco-perlite balance: Nutrifield Coco Coir Perlite Mix 10 Liter – 70/30 Blend – Pre Buffered with Calcium
- Best for compact eco brick: GrowBycoco Coco Coir 650g Brick – Premium Organic Coco Peat Brick for Garden Soil & Potting Mixes-Coconut Fiber Substrate Mixes with Potting Soil for Indoor Plants & Outdoor Plants
- Best for massive expansion: Verdana Coco Coir Potting Soil Brick – 10 Lb – Peat Moss Alternative for Potting Mix
Product Comparison: Best Coco Coir Compost Mix
10-Pack Convenience
Coco Coir 650gm Bricks (10-Pack) – Organic Coco Coir for Plants – OMRI-Listed Cocopeat Bricks for Garden Soil & Potting Mixes – Coconut Fiber Mixes with Potting Soil for Indoor & Outdoor Plants
plantonix
- Pre-Rinsed & Pre-Screened Coco Coir – Every block of our coconut fiber substrate has been screened multiple times through an extremely small filter to get rid of any traces of fiber, sand, and rocks. This is what sets our coco coir apart, giving you pure and clean coco coir for plants, unlike others who don’t filter their coco coir for impurities.
- Natural Soil Amendment for Plants – Coconut fiber is a 100% organic and renewable soil amendment that works as a growing medium for succulents, herb planters, seedlings, vegetables, flowers, indoor house plants, indoor gardens, and more. Simply expand and mix with plant soil or organic potting soil for indoor plants or outdoor plants.
- Excellent Moisture Retention – After expanding in water, coconut coir bricks can be broken up and used as seed starter soil in gardening pots, garden containers, and garden terraces. Coco fiber absorbs and retains moisture, ensuring your plants stay hydrated. Its high cation exchange capacity (CEC) and neutral pH greatly improve nutrient uptake.
- Improves Soil Structure & Aeration – Coco coir blocks promote soil aeration and drainage, creating air pockets that prevent soil compaction and allow oxygen to reach plant roots more efficiently. As coco fiber breaks down, it adds organic matter to planting soil, improving overall soil fertility in potting mixes and seed starting mixes.
- Sustainable Growing Medium – Compressed coco coir for plants is made from renewable coconut husks that would otherwise be thrown away. Unlike peat moss, coco coir is 100% natural mulch medium and doesn’t contribute to the destruction of natural wetlands. As a garden mulch, Coco Bliss is an environmentally sustainable choice for your growing needs!
Bulk Eco Blend
Coco Bliss (10lbs) – Organic Coco Coir for Plants – OMRI-Listed Coco Coir Brick for Garden Soil & Potting Mixes – Coconut Fiber Substrate Mixes with Potting Soil for Indoor Plants & Outdoor Plants
plantonix
- Pre-Rinsed & Pre-Screened Coco Coir – Every block of our coconut fiber substrate has been screened multiple times through an extremely small filter to get rid of any traces of fiber, sand, and rocks. This is what sets our coco coir apart, giving you pure and clean coco coir for plants, unlike others who don’t filter their coco coir for impurities.
- Natural Soil Amendment for Plants – Coconut fiber is a 100% organic and renewable soil amendment that works as a growing medium for succulents, herb planters, seedlings, vegetables, flowers, indoor house plants, indoor gardens, and more. Simply expand and mix with plant soil or organic potting soil for indoor plants or outdoor plants.
- Excellent Moisture Retention – After expanding in water, coconut coir bricks can be broken up and used as seed starter soil in gardening pots, garden containers, and garden terraces. Coco fiber absorbs and retains moisture, ensuring your plants stay hydrated. Its high cation exchange capacity (CEC) and neutral pH greatly improve nutrient uptake.
- Improves Soil Structure & Aeration – Coco coir blocks promote soil aeration and drainage, creating air pockets that prevent soil compaction and allow oxygen to reach plant roots more efficiently. As coco fiber breaks down, it adds organic matter to planting soil, improving overall soil fertility in potting mixes and seed starting mixes.
- Sustainable Growing Medium – Compressed coco coir for plants is made from renewable coconut husks that would otherwise be thrown away. Unlike peat moss, coco coir is 100% natural and doesn’t contribute to the destruction of natural wetlands, making Coco Bliss an environmentally sustainable choice for your growing needs!
Compact Duo
ZeeDix 2 Pcs Coco Coir Brick for Plants- 100% Organic Coconut Coir for Garden Soil & Potting Mix, Low EC and pH Balance, Compressed Coconut Husk Fiber for Seed Starter Soil for Indoor Outdoor Plants
ZeeDix
- 【Coco Coir Brick】: Made of 100% natural organic coconut coir, which extracted from the husk on the outer shell of a coconut, low EC and suitable pH can provide a healthy growing environment for most flowers and plants, so it can cultivate flowers and economical plant products without soil, and can also cultivate seedlings
- 【Quantity & Size】: You will get 2pcs, each size is about 8 x 4 x 2 Inches and each weight is about 1.4lb, total is about 2.8lb. And 2pcs coco coir bricks can expand to 15 Quarts with water, so it can meet most needs of planting
- 【Good Water Absorption】: Coconut Coir Starting Mix is compressed into light convenient coco coir block, which will absorb up to 8-10 times its weight in water, then swells up quicky. So it can help plants absorb water more effectively while allowing excess fluid to drain efficiently to reduce oversaturation and prevent waterlogged roots and achieve stronger plant growth and healthier root system.
- 【Easy to Use】: Just soak the coco coir bricks in water, it will expand after aborb up water, you can speed up its decomposition and expansion through the mixing of tools, then you can use them to plant the seeds and seedlings
- 【Used for】: Coco coir medium can provide sufficient oxygen and moisture, so it can be used for planting the flowers and herbs, perfect for potted plants, vermicomposting, raised garden beds, grow bags, amending clay soils, succulent propogation, etc.
Buffered Starter
AC Infinity Instant Potting Mix, 2 lb. Premium Buffered Coco Coir Brick, Coconut Compost as Potting Soil Omri Listed, Low EC and pH Balance for Hydroponics Plant Growing and Propagation
AC Infinity
- A soilless grow medium made from 100% organic coco coir fiber to promote successful seed starting.
Four-Pack Power
Legigo 4 Pack Premium Coco Coir Brick for Plants- 100% Organic Compressed Coconut Coir Bricks Starting Mix, Coco Coir Fiber Coconut Husk for Planting, Gardening, Potting Soil Substrate, Herbs
Legigo
- Coco Coir Growing Medium: This low EC, PH balanced biodegradable soil is made from crude fiber extracted from the husk on coconut coir, 100% natural organic and sustainable, a traditional soil alternative, it can take your gardening and planting efforts to a new level; 4 Pack, each coir brick is: 8 x 4 x 2 inches, weight 1.4 lb
- EASY To Use and Store: Coco coir brick is compact and lightweight after compression, you can use these in conjunction with other putting soil, easier to store than bags of potting soil; It will expand rapidly after adding water, then you can plant the plants, flowers, vegetables or herbs, creating a stronger foundation for growing seedlings
- Optimal Aeration and Drainage: The spongy nature of coconut fiber can absorb enough water to make the soil very fluffy when it expands, helping plants absorb water more efficiently, and holds just enough moisture while letting excess out, ideal for thicker plant bases; The coco coir remains in use for a long time and can be reused indefinitely
- Increase Healthy Root Growth: Coconut coir bricks is light and airy, providing vital oxygen to plant roots; Our coconut soil will keep your plants moist in hot, dry conditions; Can achieve stronger plant growth and healthier root system; Help your plants grow stronger at the root by starting them off with our coco coir potting soil
- Wide Application: Suitable for all gardening applications, potted plants, grow microgreens, container gardens, raised garden beds, indoor plants, flowers, vegetables, herbs; Also suitable for bedding of various reptiles, it worked great for making organic compust; Tips: When mixing with water to hydrate make sure to start out slowly so you achieve the consistency you want
High-Volume Growth
Growbycoco Coco Coir Brick(11lbs) – Premium Organic Coco Peat Brick for Garden Soil & Potting Mixes-Coconut Fiber Substrate Mixes with Potting Soil for Indoor Plants & Outdoor Plants -19 Gallons
growbycoco
- 8X+ EXPANSION -Each coco coir brick is highly compressed, expand to more than eight times its original size when hydrated ,one coir brick yielding 70-75 liters (19 gallons) of premium growing medium and our coconutcoir soil ideal for compact storage, easy transportation and for versatile gardening applications.
- LOW EC- Growbycoco coconut coir brick designed with low electrical conductivity, this coir is free of extra salts,making an this coir pith excellent for growing plants,herb plants, seedlings, vegetables, flowers, indoor house plants, indoor gardens and outdoor gardens.
- PH NEUTRAL -Low EC coco fiber compressed growing medium is washed and maintains a neutral pH level, ensuring compatibility with a wide variety of plants, including micro greens, flowers, vegetables, and hydroponic systems and perfect for indoor planters, greenhouses, and outdoor gardens.
- 100% NATURAL AND ORGANIC- Growbycoco coir sourced from sustainable coconut husks, our coir for plants is eco-friendly, renewable and organic and that is a greener, more sustainable alternative to peat moss.
- EXCEPTIONAL MOISTURE RETENTION – Growbycoco coir pith bricks absorbs and retains water efficiently while maintaining excellent drainage. Our coir soil is perfect for seed starting, container gardening, hanging baskets, garden beds, and raised planters.
- VERSATILE USAGE ACROSS APPLICATIONS- Coir for plants suitable for indoor and outdoor plants, hydroponic, micro greens,herb planters, flower pots, vegetable gardens, seed trays, and composting and coir brick supports diverse gardening needs with ease.
- SUPERIOR AERATION & DRAINAGE – Our coco coir blocks for plants enhances soil aeration and prevents compaction and allows plant roots to access oxygen while effectively draining excess water. Our cococoir potting soil mix promotes plant root growth and minimizes risks of waterlogging.
- NATURAL SOIL AMENDMENT & ENHANCER -Mix with potting soil or use as a standalone medium to improve soil structure, increase fertility, and boost nutrient retention for healthier plants. Cocopeat for plants and ideal for both indoor and outdoor gardening.
- SUSTAINABLE GROWING SOLUTION- Made from 100% renewable coconut coir that’s naturally biodegradable. Unlike peat moss, doesn’t contribute to wetland destruction, making it an eco-friendly choice for gardeners.
All-in-One Blend
Organic Mechanics 110 Blend Organic Potting Soil – 1.76 Cu Ft | Peat-Free Mix with Biochar, Coco Coir, Perlite, Compost | for Indoor Plants, Outdoor Gardens, Containers
Organic Mechanics
- Large 1.76 Cu Ft Bag – Great value size for indoor gardening and outdoor containers
- Peat-Free Organic Mix – Contains biochar, coco coir, perlite, compost, worm casting, plus bone char, volcanic ash, zeolite, alfalfa meal, and kelp meal
- Superior Drainage & Aeration – Ideal soil structure to promote root health and reduce overwatering
- Feeds Soil Biology – Adds calcium, phosphorus, and minerals to nourish microbes and plant roots
- Heavy Metal Tested – Tests super clean for heavy metals to support safe, healthy growing environments
- Ready-to-Use On All Plant Types – For optimal growth, add desired fertilizer for vegetative and flowering phase
Coco-Perlite Balance
Nutrifield Coco Coir Perlite Mix 10 Liter – 70/30 Blend – Pre Buffered with Calcium, Organic Coconut Coir & Perlite for Plants – Hydroponic, Indoor & Outdoor, Grow Bags & House Plants
NUTRIFIELD
- Premium 70/30 blend: Nutrifield Coco Perlite Mix potting soil contains 70% high-quality desiccated coconut coir and 30% perlite. This balanced blend ensures optimal nutrient retention and efficient drainage, providing the ideal substrate for hydroponics and other gardening methods. RHP certified.
- Excellent water retention: The fine particle size of the potting mix promotes excellent water retention around the plant roots, helping to maintain a consistent nutrient profile. Pre-buffered with calcium, it is pH-stabilized and thoroughly rinsed to reduce salt content.
- Enhanced aeration: The larger perlite size of the plant soil blend enhances airflow to the root zone, preventing compaction and promoting healthy root growth. It ensures nutrients and oxygen are evenly distributed, crucial for optimal plant development.
- Ready to use: This garden soil mix comes perfectly hydrated and free-flowing, making it ready to use right out of the bag for indoor or outdoor gardening, including flower, vegetable, and hydroponic systems. Ideal for plant potting soil.
- RHP certified for quality: For over 20 years, this RHP-certified seed starter soil has been consistent in quality. It is safe, eco-friendly, and an inert substrate, suitable for diverse planting needs. Coco Coir and Perlite for Plants
Compact Eco Brick
GrowBycoco Coco Coir 650g Brick – Premium Organic Coco Peat Brick for Garden Soil & Potting Mixes-Coconut Fiber Substrate Mixes with Potting Soil for Indoor Plants & Outdoor Plants
growbycoco
- 7X+ EXPANSION- Our coco coir bricks are highly compressed, one coconut coirbrick expand to more than seven times its original size when hydrated,one cococoir brick yielding 7-9 liters (1.4 lb) of premium growing medium and ideal for compact storage, easy transportation and for versatile gardening applications.
- LOW EC- Coconut coir designed with low electrical conductivity, this coco peat brick is free of extra salts, coco fiber potting soil making an excellent choice for growing plants, vegetables, herbs, and seedlings in indoor gardens and outdoor gardens.
- pH NEUTRAL -Organic coco coir pith brick for plants maintains a neutral pH level, ensuring compatibility with a wide variety of plants, including micro greens, flowers, vegetables, and hydroponic systems and this coconut coir for plants perfect for indoor planters, greenhouses, and outdoor gardens.
- 100% NATURAL- Our cococoir garden soil for plants sourced from sustainable coconut husks, eco-friendly, renewable, greener and more sustainable alternative to peat moss.
- EXCEPTIONAL MOISTURE RETENTION – Growbycoco coconut coir brick absorbs and retains water efficiently while maintaining excellent drainage and our cococoir soil perfect for seed starting, container gardening, hanging baskets, garden beds, raised planters and indoor and outdoor gardens.
- VERSATILE USAGE ACROSS APPLICATIONS- Growbycoco coconut fiber peat suitable for indoor and outdoor plants, hydroponic, micro greens,herb planters, flower pots, vegetable gardens, seed trays,composting and Growbycoco coir for plants supports diverse gardening needs with ease.
- SUPERIOR AERATION & DRAINAGE – Coco coir enhances soil aeration and prevents compaction and allows plant roots to access oxygen while effectively draining excess water. Coconut fiber potting soil mix promotes plant root growth and minimizes risks of waterlogging.
- NATURAL SOIL AMENDMENT & ENHANCER – Our coir for plants mix with potting soil or use as a standalone medium to improve soil structure, increase fertility, and boost nutrient retention for healthier plants and this coir soil ideal for both indoor and outdoor gardening.
- SUSTAINABLE GROWING SOLUTION- Our 650g coco coir bricks made from 100% renewable cococoir that’s naturally biodegradable. Unlike peat moss, doesn’t contribute to wetland destruction, cocopeat making it an eco-friendly choice for gardeners.
Massive Expansion
Verdana Coco Coir Potting Soil Brick – 10 Lb – Peat Moss Alternative for Potting Mix, Raised Bed Soil, Organic Gardening & Seed Starting – Compressed Coconut Fiber Block Expands to 18 Gallons
Verdana
- 1. All-Natural Potting Soil & Peat Moss Alternative: Eco-friendly coconut coir brick ideal for organic gardening. Great for raised beds, container gardens, and as a sustainable replacement for peat moss or dirt.
- 2. 10 Lb Brick Expands to 18 Gallons of Soil: Just add water and watch it grow! This compact block expands into soft, fluffy coco fiber—perfect for seed starting, vegetable beds, houseplants, and flower pots.
- 3. Improves Drainage, Aeration & Root Health: Coco coir helps roots thrive by enhancing air flow and retaining moisture without compacting. Ideal for soil amendment and potting mix in both indoor and outdoor setups.
- 4. Clean, Low-EC & pH-Neutral Growing Medium: Made from 100% renewable coconut husk with no additives. Low salt content supports strong, healthy plant growth for herbs, veggies, and ornamentals.
- 5. Mess-Free, Odorless & Easy to Store: Lightweight and space-saving for gardeners, landscapers, nurseries, and home growers. Use it as raised bed soil, coir mulch, or hydroponic grow media.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
What key specifications should I compare when choosing a coco coir brick?
Look at the expansion ratio (how many liters the brick yields when hydrated), the EC (electrical conductivity) and pH level, and the weight of the brick. Low EC and neutral pH are ideal for most plants, while a higher expansion ratio offers better value per pound.
How does the moisture retention of the Growbycoco 11‑lb brick compare to the smaller 650 g bricks?
Both products are designed for excellent moisture retention, but the larger 11‑lb brick expands to 70‑75 L, providing a more uniform water‑holding capacity for bigger projects. The 650 g bricks still retain water well but are better suited for container gardening or seed starting where space is limited.
Is there a noticeable difference in sustainability between the Coco Bliss 10‑lb brick and the Verdana 10‑lb brick?
Both are made from 100 % organic coconut husk, a renewable resource that replaces peat moss. Verdana emphasizes a peat‑moss‑free formulation, while Coco Bliss highlights its OMRI‑listed status; either choice offers an eco‑friendly alternative to traditional soil.
Which product provides the best value for large‑scale gardening projects?
The Growbycoco 11‑lb brick offers the lowest cost per liter of expanded medium, delivering up to 75 L of soil, making it ideal for raised beds or extensive container setups. For smaller budgets, the 10‑pack 650 g bricks give flexibility without the need for large storage space.
Can I mix a pure coco coir brick with a pre‑blended mix like Nutrifield’s 70/30 coco‑perlite blend?
Yes, combining a pure coir brick with a perlite‑rich blend can improve aeration while maintaining moisture retention. Many gardeners add a portion of a pre‑buffered mix to balance nutrient retention and drainage for hydroponic or indoor applications.
What are the advantages of low‑EC coir bricks such as the Legigo 4‑Pack and GrowBycoco 650 g brick?
Low‑EC coir reduces the risk of salt buildup, which can stress seedlings and sensitive plants. This makes them especially suitable for hydroponic systems and for growers who prefer to add nutrients gradually rather than dealing with excess salts.
How do the added features of the Organic Mechanics 1.76 cu ft potting mix compare to a straight coir brick?
Organic Mechanics blends coco coir with biochar, perlite, compost, and mineral amendments, offering immediate fertility and improved structure. A pure coir brick provides excellent aeration and moisture but requires supplemental nutrients for optimal plant health.
Is there a noticeable difference in ease of use between the 2‑brick ZeeDix pack and the single‑brick options?
The ZeeDix pack includes two smaller bricks that expand to about 15 quarts each, making them convenient for quick seed‑starting or small containers. Single larger bricks may require more water and effort to fully expand but reduce the number of units you need to handle for big projects.