Grodan cubes x 8 in a length – 75 x 75 no hole (3 inch)

Grodan 3-inch (75 x 75 mm) rockwool cubes are supplied in strips of 8 without pre-drilled holes, offering flexibility for seeding and cutting insertion. This hydroponic growing medium features a fibrous, porous structure that provides balanced water retention and aeration to support root development in seedlings and clones. The pH-neutral, sterile composition minimizes pathogen risks and ensures consistent nutrient availability. Easy to pre-soak and use in propagation trays, the cubes maintain structural integrity during the rooting phase and allow for straightforward transplanting into larger media.