Grodan Rockwool Cubes are premium-quality propagation cubes manufactured in Holland from 100% natural basalt rock. Renowned worldwide for their consistency and performance, genuine Grodan Rockwool provides an ideal growing medium for hydroponics, seed raising, and plant propagation.
Completely sterile and inert, Grodan Rockwool reduces the risk of pests, diseases, and contamination while providing a clean environment for healthy root development. Its carefully engineered fibre structure creates the ideal balance of air and water, encouraging rapid root establishment and vigorous plant growth.
The predominantly vertical fibre orientation ensures roots encounter consistent resistance throughout the cube, promoting uniform root growth and even plant development. This uniform structure also maintains consistent moisture levels and electrical conductivity (EC) across every cube, helping growers achieve reliable, repeatable results.
If the growing medium dries out, Grodan Rockwool can be easily re-wetted, reducing the risk of root damage and helping maintain optimal growing conditions throughout the crop cycle.
Ideal for commercial growers, hydroponic systems, nurseries, and home gardeners, Grodan Rockwool Cubes provide the professional performance trusted by growers around the world.