Newmarket, Ontario (Head Office)
1175 Stellar Drive, Unit #5
Newmarket, ON L3Y 7B8
- Mon10:00am–6:00pm
- Tue10:00am–6:00pm
- Wed10:00am–6:00pm
- Thu10:00am–6:00pm
- Fri10:00am–6:00pm
- Sat10:00am–4:00pm
- SunClosed
$0.00 CAD
This product may offer additional benefits beyond those listed.
1175 Stellar Drive, Unit #5
Newmarket, ON L3Y 7B8
106 Saunders Road, Unit #2A
Barrie, ON L4N 9A8
719 Krosno Boulevard
Pickering, ON L1W 1G4
915 McLeod Avenue, Unit #4
Winnipeg, MB R2G 0Y4
This product may offer additional benefits beyond those listed.
PRO-MIX® CX biostimulant coir-based open top grow bag is a coir-based growing medium and ready-to-use grow bag designed for precise control and an ideal environment for crop development. Built around an all-coco formula, it’s a coco grow bag substrate that supports consistent crop performance in controlled growing facilities.
PRO-MIX® CX is formulated with a unique blend of coir fiber and coir pith to deliver optimal water-holding capacity alongside air-filled porosity. That balance helps keep the root zone evenly supported, so crops can develop with more predictable moisture and airflow conditions. For growers who value repeatable results, the product is positioned for superior quality, consistency and risk-free growing, with a clean, professional feel from start to finish.
The open top grow bag format is designed to be faster, easier and cleaner in day-to-day production. As a ready-to-use grow bag, it helps reduce handling steps and keeps set-up streamlined, which supports time and cost-saving benefits in busy rooms. The design also aims to lower the risk of handling contamination and supports a cleaner working environment, with no container required and no cleaning or sterilization needed as part of routine turnover.
A few practical build details make the workflow smoother. The bag includes pre-cut openings intended for clean integration with common drip hardware and a preformed center opening that speeds transplanting and reduces fuss when moving young plants into production. In use, the format is also designed for improved leaching of fertilizer salts, supporting a steadier media profile over the crop cycle.
The media itself is based on coir components, including coir chunk and coir pith, in a blend built to deliver high air porosity with medium-high water holding capacity. PRO-MIX® CX is a good fit for controlled-environment agriculture and young plant propagation where a coir-based growing medium, a ready-to-use grow bag, and consistent air-filled porosity are priorities.
Yes, coconut chunks can be very good for container roots because they hold open air spaces for oxygen while still keeping thin moisture films available, which helps roots stay active and efficient instead of sitting in soggy, low-oxygen media. They’re unique because they act like a chunky structural ingredient but also buffer moisture more than many similar chunky materials, so you often get better drainage without an overly fast dry-out.
Coconut coir is important because it holds water while still keeping roots oxygenated, creating a more stable root zone that supports faster, healthier growth, and it’s unique compared to similar media because it combines soil-like moisture buffering with more controllable, predictable nutrient and drainage behavior.

1175 Stellar Drive, Unit #5
Newmarket, ON L3Y 7B8
106 Saunders Road, Unit #2A
Barrie, ON L4N 9A8
719 Krosno Boulevard
Pickering, ON L1W 1G4
915 McLeod Avenue, Unit #4
Winnipeg, MB R2G 0Y4