Rock wool culture block, 5 x 5 x 5 cm

Rock wool culture block, 5 x 5 x 5 cm

• for culture in hydroponic systems
• for rooting cuttings
• Size: 5 x 5 x 5 cm

The growing blocks are ideal for hydroponic cultivation. They are characterised by their high air permeability and homogeneity. The rockwool blocks are a proven planting medium in all stages of plant development within hydroponic systems. The structure and shape of the rockwool cubes makes them very easy to handle. All cubes have a uniform structure, strength and arrangement of fibres. This means a uniform water and nutrient supply, which has a positive effect on germination and root development.

The vertical structure gives the growing cubes the optimum resistance. One advantage is that the cubes retain their shape even after transplanting, creating a good bond with the planting cube and thus ensuring successful further root formation. For a good water/oxygen ratio, the pores in the cubes are arranged in mixed large and small sizes. The special structure creates an even distribution of nutrient solution throughout the cube. Once rooted, the growing cubes can be placed in all conventional planting media, such as coco substrate, soil or rock wool.

Juan's special tip: Rockwool cubes are not pre-fertilised, i.e. for a fast and uniform development, a weak nutrient solution(EC 0.5-1.0; pH 6.0) should be given in the first few days, preferably additionally with root stimulators, such as Ecolizer Root Up, Canna Rhizotonic, BioBizz Root Juice.