Made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs
Has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen...
Grodan Stonewool (rockwool) is 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...
The ideal growing media for seed starts, microgreens, baby leaf crops, and more. Thinnest Grodan available. 10 x 20 inch mats fits in most propagation trays. Consistent structure results in quick and...
New and improved stone wool substrate with advanced wetting technology from Grodan
Introducing Grodan Gro-Blocks Improved, a product specifically engineered to deliver real results for your crops,...
