Best Coco Cubes for Plants and Cloning: Top Picks for Every Gardener
The right coco cubes or coir-based propagating media can boost root development, improve moisture retention, and support healthy plant growth. This guide highlights five standout coco cube and coco-based plug products commonly used for cloning, seed starting, and seedling care. Each option balances air and water, is easy to use, and is suitable for indoor and outdoor propagation. Below you’ll find concise product overviews, a quick buying guide, and a summary table to compare core features at a glance.
| Product | Brand | Medium Type | Best For | Key Benefit |
|---|---|---|---|---|
| Hormex Rooting Cubes | Hormex | Peat Moss & Coco Plugs | Cloning & Seed Starting | Enhanced root development & balanced moisture |
| Char Coir Coco Cube | CHAR COIR | Coco Coir Cube | Seed To Veg & Clone | Buffered, pH stable, rapid root development |
| VPS OrganiPlug Hydroponic Seed Starter Plugs | Ventana Plant Science | Organic peat & coco coir | Seedlings & Cuttings | Pre-moistened, nutrient-rich, ready to use |
| Legigo Organic Coco Coir Bricks | Legigo | Coco Coir Bricks | Soil mixes & seed starting | Low EC, pH balanced, easy expansion |
| Riare Coco Chips Substrate | Riare | Coco Chips Substrate | General growing medium | High expansion, low EC, nutrient-friendly |
Note: Prices and availability may vary by retailer. This guide emphasizes media quality, ease of use, and suitability for cloning, seed starting, and seedling care.
Hormex Rooting Cubes

Hormex Rooting Cubes combine peat moss and coco plugs to support robust root development for cuttings and seedlings. These plugs are designed to optimize moisture retention and aeration, helping establish healthy root systems in soil, hydroponics, and various propagation setups. The material balance promotes even water distribution and oxygen flow, reducing the risk of overwatering while encouraging lateral root growth. Suitable for indoor, outdoor, and greenhouse environments, these cubes provide a versatile solution for home gardeners and professional propagators alike.
Char Coir Coco Cube

Char Coir Coco Cube uses 100% RHP-certified coco coir in an aerated fabric bag, buffered and pH-stable for steady nutrient uptake. The rapid root development is aided by a high-pith coco coir base that preserves water and promotes aeration. Buffered calcium and magnesium help stabilize pH, ensuring consistent nutrient availability during cloning or seedling growth. This cube is designed for reliable performance across stages from clone to flower, making it a dependable medium for hydroponics and traditional soil systems alike.
VPS OrganiPlug Hydroponic Seed Starter Plugs

OrganiPlug Hydroponic Seed Starter Plugs provide a ready-to-use, food-safe propagation option. Incorporating organic peat and coco coir OMRI-listed ingredients, these plugs are pre-moistened with a proprietary mix of nutrients and beneficial fungi to support strong seedling growth. They are compostable and Kosher-certified, designed to promote quick germination and robust early growth. The plugs are convenient for quick setup in standard propagation trays and are suitable for seedlings, cuttings, and cloning efforts in various growing systems.
Legigo Pack Of 10 Organic Coco Coir Bricks

Legigo offers a 10-pack of organic coco coir bricks that expand into a usable growing medium. These bricks are low EC and pH balanced to support robust root development in a range of plants. Once hydrated, they can be mixed with soil or used as a stand-alone substrate for seedlings, herbs, and small plants. The compact brick form makes storage easy, and the resulting substrate promotes good aeration and moisture retention without compaction.
Riare Coco Chips Substrate

Riare Coco Chips Substrate consists of 100% organic coconut coir chips with low EC and balanced pH. The substrate bricks expand with water to a high-volume medium suitable for flowers, herbs, and general garden use. It offers good aeration and moisture retention, supporting healthier root growth and nutrient uptake. This medium is convenient for mixing with perlite or soil to tailor a custom propagation mix for different plant types.
Buying Guide: Key Purchase Considerations
Media Type: Coco cubes, bricks, and chips each have different expansion properties. If you need quick setup for seed starting, look for pre-moistened plugs or fast-expansion bricks. For cloning or long-term seedling care, a high-air, high-retention coco cube or buffered coir can offer advantages in root formation.
Buffering and pH: Buffered coco coir with stabilized pH supports predictable nutrient uptake and reduces pH drift. This is especially important for seedlings and clones that are sensitive to pH shifts during early growth.
EC and Nutrient Content: Low EC media are generally preferred for starting seeds and cuttings to prevent nutrient burn. Some products include nutrients or beneficial fungi; consider your growing system (soil, hydroponics, or a mix) when choosing.
Compatibility: Ensure the media works with your propagation setup (standard seed trays, hydroponic systems, or soil-based pots). Some plugs are compostable and Kosher-certified, which may matter for certain growers.
Expansion and Handling: Bricks and chips require expansion with water; plan for the space and time needed to hydrate fully. Pre-moistened plugs save time for quick propagation, especially in busy growing environments.
Sustainability: Organic, OMRI-listed ingredients and certified media can be important for eco-conscious gardeners and organic growing practices.
Price and Availability: Compare packs and bulk options to determine value, but also consider long-term use and waste. Some cultures prefer one brand’s texture over another for rooting efficiency.