Rockwool

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 for rapid plant growth Seedlings or cuttings started...

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 one batch of wool, Grodan is unique by making different...