Rock wool culture block, 7.5 x 7.5 x 6.5 cm, 10 pieces

Rock wool culture block: 7.5 cm x 7.5 cm x 6.5 cm, 10 pieces

Growing with rockwool blocks is very easy; the blocks fit ideally into each other.
After rooting, the rockwool blocks can be placed either on mats, in other substrates or directly in the growing system (e.g. ebb and flow table or NFT system).

The rock wool cubes are characterised by their high air permeability and homogeneity. They are a proven planting medium for germination and root development. 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 propagation cubes the optimum resistance. An 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.

Juans-Tip: Rockwool cubes are not pre-fertilised, i.e. for fast and uniform germination and root development, the nutrient solution should be lightly fertilised(EC 0.5-1.0; pH 6.0) and preferably root stimulators such as Ecolizer Root Up, Canna Rhizotonic, BioBizz Root Juice.