Grodan, Rockwool Sheet, 30 x 30 x 40mm, Unwrapped, 77 Blocks
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Grodan, Cube, 30 x 30 x 40mm, Unwrapped
Grodan Cubes are ideal for all types of hydroponics growing, these products offer you ideal air/water balance, simple controllable of water and nutrients and strong root growth throughout the entire block. It has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. It is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. It comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums. These are ideal for raising seedlings and cuttings and are supplied in their own plastic tray for easy handling. Once roots start to emerge through the cubes you will need to plant them on into larger Grodan transplanting cubes or some other medium. It can be place on top of other cubes / slabs into which the roots can grow. Grodan cubes with holes in the top are designed to have the smaller cubes fit into them. This would be after you see roots start to emerge from the smaller cube. Simply tear off and refill your SBS (Single Block System) tray.
