These cubes are ideal for germinating seeds.
Grodan Rockwool is made from molten rock spun intocotton 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 for rapid plant growth.
Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired.
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