Grodan, Rockwool Cube, 75 x 75 x 65mm, With Hole, Wrapped
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Grodan, Cube, 75 x 75 x 65mm, With Hole, Wrapped
Grodan rockwool Cubes are ideal for all types of hydroponics growing, these products offer you ideal air/water balance, simple controllability 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. Grodan cubes containing plants are set on top of the slabs and the roots grow through the block and into the slabs. Nutrient solution may be applied through a spray or drip emitter either directly to the slab or through the growing cubes. Cubes are commonly used for germination of seed and rooting cuttings. The vertically oriented fibers in blocks promote good downward root growth. Grodan cubes with plastic wrapped will guide roots downward.