RIOCOCO Grow Bag Slab | 15L - 40in x 6in x 4in

Compressed Coir Fiber Starter Block for Organic Propagation, 15L

A propagation block with fine dust or an unpredictable air-to-water ratio can slow down an otherwise clean start. RIOCOCO Grow Bag Slab is made from 100% coir fiber, blended without fine dust particles, to help propagate faster and produce healthy plants organically with even water distribution.

This 15L, 40in x 6in x 4in block is a 70% coco chip, 30% coco pith blend, compressed and packed in a biodegradable cellulose sack.

Key Features & Benefits

• 100% coir fiber — made without fine dust particles for cleaner handling.
• Excellent water holding — equal distribution of water throughout the starter block.
• 70/30 coco chip-to-pith blend — 31% air-filled porosity and 50% water holding capacity.
• Biodegradable packaging — compressed block packed in a biodegradable cellulose sack.

Who Should Use RIOCOCO Grow Bag Slab

Organic growers who want an airy starter block with even water distribution, from seed or clone through to transplant, will find this slab suited to that stage of a crop cycle.

About RIOCOCO

RIOCOCO has supplied washed, tested coco coir substrates and grow bags to hydroponic and container growers since 2004, sourcing its coconut coir from Sri Lanka's coir industry.

Frequently Asked Questions

What is this block made from?

100% coir fiber, blended as 70% coco chips and 30% coco pith. That blend balances aeration with water-holding capacity in a single starter block.

What is the air-filled porosity?

31%, with 50% water holding capacity. Those numbers are documented on the packaging rather than left unspecified.

How is this slab tested before it's packaged?

This grow bag slab is tested for heavy metals and pathogens before it's packaged. That's the same testing standard RIOCOCO applies across its coir substrate line.

What size is this slab?

15L, measuring 40in x 6in x 4in and packed in a biodegradable cellulose sack. That footprint suits a row of starts rather than a single small container.