Coir Growing Media for Cannabis
Developed for growers who require precise irrigation control, our premium-quality coir growing media provide excellent drainage, consistent structure, and high air porosity to support active root development.
Our coir substrates are available in multiple formats to fit your facility's needs, including compressed grow bags for time and cost savings. Produced in our own facilities using carefully processed coir for consistent quality and full traceability, PRO-MIX® coir delivers predictable performance across crop cycles.
Select coir formulations include integrated AGTIV® biologicals that support early root development and nutrient uptake.
Our Growers Recommend
See how cannabis cultivators use our coir substrates to support precise irrigation strategies, rapid dry-down cycles, and active root growth.
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“The introduction of PRO-MIX® coco-based grow bags has transformed the way we work, Packing coco, filling pots, and transplanting are now super easy, saving a lot of labor.”
Mike, Owner/Operator - Cookies
Find answers to frequently asked questions here.
Will hydration and drainage properties remain the same for both Eco-One® plastics and plant-based packaging options?
Yes, since the coir product inside is the same, hydration and drainage performance are maintained. The main difference is that the plant-based packaging will dry a little more easily because of the additional space available for the root to grow.
What is the recommended maximum dryback % during mid-flower crop steering?
~30% for a strong generative approach
~15–20% for a standard approach
Note: The plant-based packaging may cause your plant/media system to dry back slightly faster due to increased drainage and aeration, so monitor closely.
Will the PRO-MIX® CX plant-based packaging break down during the grow cycle?
Extensive testing has shown no visual or measurable degradation in:
- Growth rooms over 12+ weeks (including commercial trials)
- Greenhouse environments over 6+ months
You can grow with confidence; the bag holds up throughout the entire cycle.
What is the airflow like in the PRO-MIX® CX plant-based packaging, and how does it benefit the root zone?
The PRO-MIX® CX plant-based packaging features very small apertures that facilitate the exchange of both water and air, in contrast to the plastic bags. We have measured increased exchange of water and air and effective root colonization within the plant-based bags, providing additional space for root development, creating a preferential environment for air and water to exchange.
Does PRO-MIX® CX plant-based packaging respond to water the same way as the Eco-One® plastics when fluffing up?
Yes! Both bags contain the same coco material, so the hydration process is the same. However, growers should keep in mind that when using PRO-MIX® CX in plant-based packaging, the bag must be fully opened and remain open during watering. Since there are no drainage holes at the bottom, the coco may take a little more time to fully absorb water and expand when watering from the bottom.