Rockwool Propagation Cubes Free Shipping Formulated with optimal levels of

Formulated with optimal levels of calcium and microelements needed for the final stages

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promoting stronger

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Rockwool Propagation Cubes Free Shipping Formulated with optimal levels ofRockwool is produced from basalt rock, which is melted and then spun into thin fibres. These are mixed with a binding agent and compressed into slabs that are cut into the smaller cubes used for propagation. Fibres in Grodan have been spun in only one direction but Cultilene's Cultiwool propagation cubes have fibres that have been spun in two directions. This gives the cubes great flexibility and great strength when they're wet so they won't go all