rockwool, stonewool, gro-blocks, grodan

Improved homogeneity Optimum robustness and flexibility Ideal air/water balance Consistent shape of the seed hole Identically shaped plugs, Root development through the entire plug Starter Mini-Blocks can sit in a tray (flat) without support for easy starting of seeds and cuttings. For best results put them on the flat side of the Gro-Smart Tray to ensure good airflow around the cubes.

Grodan 1.5 x 1.5 x 1.5 Mini Blocks Grow Media Rockwool Stonewool Cube Propagation + Twin Canaries Chart - 15 Cubes

Grodan Pro Delta 4 Block, 3x3x2.5 with hole, case of 384 single

Grodan Expert Slab 15/75 - 40in x 6in x 3in - Gardin Warehouse

HUGO - 6 Rockwool Block - Case (now 64 cubes) - Root Grow Bloom

Grodan Gro-Block Media – Greenhouse Megastore

Grodan Stonewool Macro Plugs - Rockwool – Sunset Hydroponics and Home Brewing

Grodan Rockwool Delta GRO Blocks, 4 Cube - Pack of 6

Grodan A'OK plugs are made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth.

Grodan A-OK 36/40 1.5 in x 1.5 in Plugs (98/Sheet)

Rockwool - Grodan Delta Block - Hummert International

Rockwool grow cubes - starter plugs, 1 x 1 cubes, 200 cubes per sheet, Fits in a standard propagation tray

Rockwool Cubes, 1″ x 1″

Grodan Rockwool Hugo Block 6 in x 6 in x 6 in

Grodan Gro-Block Improved Rockwool Blocks Rockwool Hydroponic Growing Medium Hydroponic Grow Media Hydroponics

The Complete Guide to Stone Wool Growing Media for Indoor Cannabis Cultivation

New Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a sustainable water and nutrient use.

Grodan Gro-Block Improved Jumbo, Case of 64

Grodan Rockwool / Stonewool Gro-Slab 6 x 36 x 3