The Grodan Gro-Block Improved GRI32 Hugo is a high-quality rock wool block for precise hydroponic cultivation and controlled root zone management. Thanks to its large substrate volume, the block provides optimal conditions for stable moisture control, strong root development, and an efficient supply of water and nutrients.

The integrated 40 mm planting hole allows for easy insertion of suitable propagation cubes or starter plugs. This makes transplanting clean, efficient, and stable – ideal for professional grow and irrigation systems.

The modern Grodan Improved Technology supports a particularly uniform distribution of water content and EC values throughout the entire block. This allows the root zone to be precisely controlled and optimally adapted to the respective growth phase.

Thanks to the inert rock wool, nutrient management remains fully controllable, as the substrate itself does not bind or release nutrients to the plant. At the same time, the structure ensures reliable oxygen supply and high re-saturation capacity.

The Grodan GRI32 Hugo is ideal for demanding growers who value precise irrigation, strong plant development, and controlled hydroponic systems.