Grodan Delta Rockwool is a premium growing medium designed to provide optimal water retention, aeration, and root zone control for professional growers. Manufactured from volcanic rock spun into fibers, this highly effective substrate promotes consistent growth for a variety of crops, including vegetables, fruits, and flowers. Grodan Delta Rockwool is ideal for hydroponic systems, providing an inert, sterile medium that supports superior root development and plant health.

• Superior Water Retention: Grodan Delta Rockwool ensures optimal moisture availability, promoting consistent hydration throughout the plant’s growth cycle.

• Excellent Aeration: The fiber structure provides ample air pockets, ensuring adequate oxygen supply to the roots, which leads to vigorous plant development.

• Sterile and Inert: This growing medium is pH-neutral, free from pathogens, and free from added nutrients, giving growers precise control over their feeding programs.

• Optimized Root Zone: The Delta design features enhanced vertical and horizontal water distribution, ensuring that roots are evenly spread throughout the medium, resulting in stronger, healthier plants.

• Versatile Applications: Suitable for use in hydroponic and other soilless systems, Grodan Delta Rockwool is perfect for both small-scale and large-scale commercial cultivation.

Grodan Delta Rockwool can be used as the primary substrate in hydroponic setups or in combination with other growing mediums. It is available in various sizes, making it adaptable to different crop requirements and growing techniques.