GROW!T Coco Coir Mix Brick, pack of 3

Pathogen-Free Coir Bricks for Potting Soil and Ground Cover, Pack of 3

Adding structure to a potting mix without introducing pathogens or weed seed usually means paying a premium for a specialty amendment, and loose bark ground cover can wash away or break down faster than growers would like. GROW!T Coco Coir Mix Bricks give plants a sturdy growing structure that retains water while still draining well, and each brick is pathogen-free and seed-free so it can go straight into a potting mix.

This pack of 3 bricks each expand to approximately 1 cubic foot / 29 L of wetted coir, giving growers enough material for multiple containers or projects, whether the goal is amending potting soil or replacing bark as a ground cover.

Key Features & Benefits

• Expands to About 1 Cubic Foot per Brick — each brick yields roughly 29 L of wetted coir.
• Pathogen- and Seed-Free — media that's safe to add directly to potting soil.
• Balanced Air-to-Water Ratio — retains moisture while still draining excess water.
• Compact for Storage — easy to carry and store before use.
• Pack of 3 — enough coir for multiple containers or projects.

Who Should Use GROW!T Coco Coir Mix Brick, pack of 3

This pack fits growers who want a compact, pathogen-free coco coir supplement for potting soil, or a natural ground cover alternative to bark, and who need enough material on hand for more than one container or bed at a time.

About GROW!T Coco Coir

GROW!T manufactures its coco coir bricks for consistent water retention and drainage, giving growers a pathogen-free, all-natural addition to potting soil or ground cover as part of a broader coco coir line that also includes loose coir, mix blocks, and chips.

Frequently Asked Questions

How big is each brick once it's expanded?

Each brick expands to approximately 1 cubic foot, or about 29 L, of wetted coir. Three bricks in the pack give enough material for multiple containers or a larger project.

Is this brick free of pathogens and weed seed?

Yes, the bricks are both pathogen-free and seed-free. That's part of what makes them safe to blend directly into potting soil rather than risking contamination.

Can this coir replace potting soil entirely, or does it just get added in?

It can be added to potting soil as a structural amendment, or used more heavily depending on the grow, since it holds water while still draining well. How much to use depends on the crop and container size.

Is this suitable for organic growing programs?

Yes, the bricks are suited to organic growing programs. Their pathogen-free, seed-free, all-natural composition fits an organic amendment role.

How do I prepare a brick before using it?

Soak the brick in water until it expands to roughly 1 cubic foot of wetted coir, then blend it into potting soil or spread it as ground cover. No further processing is needed after soaking.