Pargro Rockwool Blocks | Biggie - 6in x 6in x 6in with Hole - Loose Carton

Large-Volume Value-Tier Rockwool Cube for Late-Stage Growth, 6x6x6in Carton

A plant well beyond the propagation stage needs a large stonewool volume to carry it toward flowering, and commercial operations running many plants need that volume at a price that scales. Grodan's Pargro Rockwool Blocks in the Biggie 6in x 6in x 6in size supply that larger cube in the same dry-shipped, value-tier rockwool as the rest of the Pargro line, with a factory-cut hole for a smaller rooted block.

This Biggie block ships loose in a carton of 64, sized for growers ordering a moderate quantity for a single bench or room.

Key Features & Benefits

• 6in x 6in x 6in Biggie Cube — a large-volume block sized to carry a plant from vegetative growth toward flowering.
• Pre-Cut Hole — sized to receive a smaller rooted block for a seamless step up in root volume.
• Dry-Shipped, Value-Tier Rockwool — ships dry to keep shipping costs down, then saturates evenly after a standard soak.
• Carton or Pallet Packaging Options — choose loose carton for smaller orders or a bulk pallet for larger commercial volume.

Who Should Use Pargro Biggie Blocks

Commercial growers who need a large-volume stonewool cube at scale, and who want a value-priced option for late vegetative growth through flowering, are the fit for Pargro Biggie Blocks.

About Pargro Rockwool

Pargro is Grodan's dry-shipped, value-tier stone wool line, giving growers the company's standard block shapes and sizes at a lower price point than the premium Improved Gro-Block series.

Frequently Asked Questions

How much stonewool volume does the Biggie block add over a smaller block?

At 6in x 6in x 6in, Biggie is one of the larger single-cube formats in the Pargro line, giving a plant substantially more root volume than a 4in block before it needs another transplant. That extra volume is meant to carry a plant from late vegetative growth into flowering.

How do I rehydrate a Biggie block before transplanting?

Soak it in pH-adjusted water until it's fully saturated all the way through, since like the rest of the Pargro line it ships dry rather than pre-moistened. Set the smaller rooted block into the pre-cut hole once the Biggie block is evenly wet.

What's the difference between the loose carton and loose pallet Biggie blocks?

Both are the identical 6in x 6in x 6in cube with the same pre-cut hole. Packaging is the only difference — a carton for smaller orders or a bulk pallet for larger commercial quantities.

Why choose Pargro's Biggie block over Grodan's premium large-format blocks?

Pargro trades the pre-soaked convenience of Grodan's premium Improved Gro-Block line for a lower dry-shipped price, while offering a comparable large-cube format. Growers running high volumes of large blocks often choose Pargro to control per-unit cost.