Description
CANNA Coco Coarse is a premium coco coir growing medium developed for cultivators who require maximum root-zone aeration and rapid drainage. Manufactured from high-quality coconut husk fibres and coarse coco particles, it creates an open substrate structure that encourages vigorous root development while maintaining an ideal balance of air and moisture.
Suitable for hydroponic, coco and automated irrigation systems, CANNA Coco Coarse provides a stable, reusable growing medium for professional and hobby growers alike. The larger particle size holds its structure across the full cycle, so the root zone stays open and oxygenated even under a heavy, high-frequency feed regime.
Key Features
| Feature | What It Means For Your Grow |
|---|---|
| Coarse Particle Structure | An open substrate that holds far more air than standard coco, giving roots constant access to oxygen |
| Excellent Drainage | Free-draining by design, so run-off clears quickly and the medium never sits waterlogged |
| Fast Root Development | High air-filled porosity drives rapid, vigorous root growth and a denser root mass |
| Balanced Air-to-Water Ratio | Retains enough moisture between feeds without ever choking the root zone of oxygen |
| Natural Coconut Husk Material | Made from high-quality coconut husk fibres and coarse coco particles |
| Irrigation Flexible | Works equally well with hand watering and fully automated drip or flood irrigation |
| Nutrient Compatible | Runs with hydroponic and coco-specific feed programmes, including CANNA Coco A&B |
| Reusable | Can be reused between crops when correctly cleaned, flushed and re-buffered |
Specifications
| Product Name | CANNA Coco Coarse |
| Product Type | Coarse coco coir growing medium |
| Material | Natural coconut husk fibres and coarse coco particles |
| Structure | High-air, free-draining coarse blend |
| Bag Size | 50 litres |
| Suitable Growing Methods | Coir cultivation and hydroponic systems |
| Suitable Irrigation | Hand watering and automatic irrigation systems |
| Drainage | Excellent |
| Aeration | High |
| Reusability | Yes, when correctly cleaned and prepared |
| Applications | Pots, containers, grow bags and grow tent cultivation |
Who It's For
CANNA Coco Coarse is ideal for growers seeking a highly aerated coco coir substrate that supports aggressive root growth and efficient irrigation. Whether you are cultivating in a grow tent, a commercial facility or an advanced hydroponic system, its coarse texture provides the drainage and oxygen levels needed for healthy, productive plants.
Feed More Often, Not More Heavily
Because a coarse medium holds less water than standard coco, it suits little-and-often irrigation. Move to shorter, more frequent feeds rather than fewer large ones, and aim for 10–20% run-off each time to keep salts in check.
How to Use CANNA Coco Coarse
- Fill your containers: Load pots, containers or grow bags with the coarse coco, firming lightly rather than compacting it — the open structure is the point.
- Pre-wet the medium: Saturate with a pH-adjusted nutrient solution before planting so the substrate is evenly moist throughout.
- Set your feed: Run a coco-specific programme such as CANNA Coco A&B, targeting a root zone pH of 5.5–6.2.
- Dial in irrigation: Use frequent, shorter feeds. Automated drip systems suit this medium particularly well.
- Between crops: Flush thoroughly, remove old root mass and re-buffer before reusing.
Complete Your CANNA Coco Setup
Pair this medium with the matching feed programme. Browse the full CANNA Nutrients range to build a complete coco schedule from propagation through to flush.
Compare All Coco Growing Media
Not sure which grade suits your system? Browse our full Coco growing media collection to compare coarse, natural and professional grades side by side.
The Hydro Bros Notes
Coarse coco is the grade we point experienced growers towards when they have outgrown hand watering. If you are running an automated system and feeding several times a day, the extra air in the root zone is what lets you push harder without waterlogging. If you are still hand watering once a day, standard Canna Coco Natural is the more forgiving choice.
What is the difference between coarse coco and standard coco coir?
How often should I water coarse coco?
Can CANNA Coco Coarse be reused?
Which nutrients should I use with coarse coco?
Is coarse coco suitable for automated irrigation?
What pot sizes does a 50L bag fill?
