Stone wool is an inert, mineral-based growing medium made from natural stone. Its uniform fiber structure supports consistent water distribution and air availability, allowing cannabis growers to manage irrigation, nutrient delivery and root-zone conditions with greater precision.

Product selection depends on your facility layout, propagation method, transplant strategy and irrigation approach. Grodan offers plugs, blocks and slabs across different product families to support a range of cultivation systems and crop-steering objectives.

Explore the Product Selection Guide

rop steering is the practice of influencing plant growth by adjusting irrigation, climate and root-zone conditions. Growers use vegetative and generative steering strategies to maintain plant balance and support specific development objectives throughout the crop cycle.

Explore the Grodan 5-Phase Model

Key measurements include substrate water content (WC%), electrical conductivity (EC) and root-zone temperature. Monitoring irrigation timing, dry-backs, drain volume, and drain EC and pH alongside these measurements helps growers understand changing root-zone conditions and refine their irrigation strategies.

Learn more about root-zone management

Grodan provides stage-specific guidance covering propagation, vegetative growth, generative growth, and flowering through ripening. Growers can explore irrigation practices, root development, canopy management and crop-steering strategies as plant requirements change throughout the crop cycle.

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