Riococo Coir Grow Slabs
Best organic growing medium for sustainable vegetable and home gardeners.
These slabs offer a masterclass in root health thanks to a rigorous five-times washed process that eliminates the dust and impurities found in lesser coir. You sacrifice the convenience of pre-mixed soil bags, but you gain a sterile, high-porosity foundation that makes organic gardening feel practically foolproof.
$40.95
at
Harris Seeds
Who it's for
- Gardeners seeking vigorous root growth and drainage
- Professional growers prioritizing consistent nutrient uptake
- Eco-conscious farmers needing efficient greenhouse setups
Who should skip it
- Beginners preferring low-maintenance soil-based growing
- Budget-focused growers looking for cost-effective bulk media
- Novice cultivators avoiding complex nutrient balancing
Performance breakdown
Root development potential
Five-times washed coir ensures a clean, debris-free environment for delicate roots.
Aeration efficiency
High air porosity prevents compaction and promotes vigorous oxygen exchange.
Moisture management
Balanced water retention keeps plants hydrated without risking root rot.
Organic integrity
OMRI listing guarantees compliance with the strictest organic gardening standards.
Sustainability profile
Responsibly sourced coconut coir offers a renewable alternative to peat moss.
pH stability
Consistent pH levels minimize the need for frequent nutrient buffering.
Key Specs
Volume
15 Liter
Material
Coir chip and natural materials
Air Fill Porosity
28-33%
Water Holding Capacity
4.5-5.5
pH
5.5-6.5
EC/Sodium Content
Very low
Bag Dimensions (Expanded)
100L x 15W x 12H cm
Certification
OMRI Listed for Organic Use
Volume (cubic feet)
0.53
Is Organic
true
Know before you buy
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