Grodan Pro Delta 4 Block, 3" x 3" x 2.5" with hole, case of 384, Commercial food-storage Heavy Duty Base - serves

Heavy Duty Base -  serves as the reservoir for auto watering

5 g/L) IBA

Plant directly in transplant hole for direct contact with roots

better resistance to stress and disease

Grodan Pro Delta 4 Block, 3" x 3" x 2.5" with hole, case of 384, Commercial food-storage Heavy Duty Base - servesGrodan 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 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