PRO-MIX® CCX AGTIV® REACH™ Growing Medium — 17 lb (50L) Loose Fill | 100% Coco Coir | OMRI Listed®

OMRI Listed® 100% Coco Coir Growing Medium for Optimised Root Zone Moisture and Aeration

Key Features & Benefits

• 100% Coco Coir (Fiber & Husk Chips): A premium blend of coco fiber and husk chips delivers the ideal combination of moisture retention (70–75%) and air-filled porosity for a healthy, oxygen-rich root zone throughout the entire crop cycle.
• OMRI Listed®: Certified for use in organic production programs, enabling growers operating under USDA NOP and equivalent organic standards to use CCX with confidence in certified operations.
• AGTIV® REACH™ Mycorrhizal Technology: Inoculated with beneficial endomycorrhizal fungi to support root colonisation, enhance nutrient and water uptake efficiency, and improve plant resilience under variable growing conditions and environmental stress events.
• High Water Retention (70–75%): Exceptional moisture-holding capacity reduces irrigation frequency while maintaining consistent moisture availability at the root zone, supporting efficient water and nutrient management in both open and recirculating systems.
• Renewable, Sustainable Substrate: Coco coir is a by-product of coconut processing, making CCX a more environmentally responsible alternative to peat-based media for growers prioritising sustainable production inputs.
• 17 lb (50L) Loose Fill Bag: Ready to use with no rehydration or reconstitution required, making it practical for transplanting workflows, container filling, and top-dressing applications across a range of growing environments.

Who Should Use This

PRO-MIX® CCX AGTIV® REACH™ is designed for high-value crop producers, certified organic growers, and controlled environment agriculture (CEA) operators who want a clean, consistent, renewable coco-based substrate. It is particularly well-suited to growers transitioning away from peat, producing crops under organic certification, or running drip, recirculating, or automated irrigation systems where predictable water retention and drainage profiles are essential for repeatable results.

Compatibility

Fully compatible with hydroponic nutrient solutions, liquid organic fertilisers, and standard fertigation systems. The 70–75% water retention profile is well-matched to drip-to-waste and recirculating coco programs. Works with standard grow trays, fabric pots, plastic containers, and open-top grow bags. OMRI Listed® certification supports compliance with most North American organic certification requirements.

Frequently Asked Questions

Does PRO-MIX® CCX require buffering before use?

Premier Horticulture pre-processes the coco coir in CCX to reduce sodium and potassium content typical of raw coco, reducing the need for traditional calcium/magnesium buffering. Growers running calcium-sensitive nutrient programs should still monitor Ca/Mg levels during the first few feed cycles to ensure the substrate is optimised for their specific system.

What is the exact composition of PRO-MIX® CCX?

CCX is composed of 100% coco coir — specifically a blend of coco fiber and coco husk chips. The fiber component provides fine texture for water retention while the husk chips increase air-filled pore space, delivering a balanced moisture-to-air ratio across the container volume.

How does CCX compare to CPX (70/30 coco/perlite blend)?

CCX offers higher water retention (70–75%) and is better suited for growers who prefer longer drying intervals between irrigations or systems with less frequent watering cycles. CPX (70/30 coco/perlite) provides lower retention (60–65%) with more aggressive drainage and faster dry-back, making it preferable for growers who prioritise aeration and rapid oxygen replenishment between irrigation events.

Is PRO-MIX® CCX suitable for reuse between crop cycles?

Coco coir substrates can often be reconditioned and reused with proper sterilisation, but Premier Horticulture recommends assessing EC buildup, physical breakdown, and microbial load before reusing any growing medium between production cycles to ensure consistent performance for the following crop.

Is this product suitable for hydroponic systems?

Yes. PRO-MIX® CCX is well-suited for hydroponic systems, particularly drip-to-waste, recirculating drip, and automated fertigation setups where a clean, pH-stable, high-retention substrate is needed. The OMRI Listed® certification also makes it compatible with hydroponic organic production systems.