[GRODAN] rock wool cube

Grodan Delta is the basis of a homogeneous and perfectly controlled propagation of plants, a condition to be fulfilled for vigorous and healthy growth of plants. Each block has a practically identical density, flexibility and robustness, guaranteeing a uniform distribution of WC, EC and PH, which results in a uniform and high quality plant. Grodan Delta guarantees plant propagators an optimal air/water balance. The variation of small and large pores throughout the block ensures that the roots are always supplied with air and water in sufficient quantity. In addition, the water content of the block can be controlled with great precision. The effective pattern of the pores ensures that water and nutrients are distributed uniformly throughout the block, thus offering excellent control of both the nutritional solution and the pH. This promotes the development of a strong root system during spread. The uniform distribution and the vertical structure of the fibers result in the same resistance for each root, guaranteeing that the roots are distributed uniformly throughout the block.