Grodan Gro Block Mini Block

While these are engineered for hydroponic systems, they work perfectly for soil-based gardening as a propagation medium. You can start your seeds or cuttings in the block and transplant the entire unit directly into your soil once the roots are established.

The 'Improved' designation refers to updated hydrophilic technology and a refined fiber structure. This combination allows for more uniform water distribution and better steerability, meaning you have more control over moisture levels throughout the propagation cycle.

Yes, you should soak the blocks in a pH-adjusted nutrient solution before use. This activates the wetting agent and ensures the block is fully saturated and ready to support your seedlings from day one.

These blocks are designed for single-use propagation. Because they are engineered to provide a sterile, consistent environment for delicate roots, attempting to reuse them can introduce pathogens or compromise the structural integrity needed for healthy growth.

These blocks are designed to hold moisture well, so ensure your tray or system allows for proper airflow underneath. Avoid letting the blocks sit in standing water for extended periods, as this can lead to over-saturation and inhibit root oxygenation.