Rockwool is a sterile growing medium that is used for seed germination, rooting cuttings, and hydroponic systems. It maintains a stable water and air retention for higher germination rate and root development.
It is also designed to provide 20% air space when saturated which allows optimal nutrient absorption for plants while allowing more air circulation to oxygenate the roots
Great alternative to growing in soil as it has a predrilled planting holes which makes planting and propagation easier and more convenient.
1 sheet of 25 plugs
25x25x40mm per plug