Find the right Grodan stone wool plugs, blocks and slabs for your cannabis cultivation facility.
Grodan plugs, blocks, slabs and granulate each serve a different purpose in cannabis cultivation. See how they fit into your growing system, from propagation through harvest.
Used for rooting cuttings and starting seeds, Grodan stone wool plugs support uniform root development and consistent moisture distribution before transplanting.
Smaller blocks support root development during vegetative growth, while larger blocks can serve as the final growing medium through harvest.
Grodan slabs support single- and multi-plant growing systems, providing precise irrigation and crop-steering control through flowering and harvest.
Plug → Large block
Rooted plugs move directly into larger blocks that support the crop through harvest, reducing transplant steps and associated labour.
Plug → Small block → Large block or slab
Plants move from propagation plugs into smaller blocks for vegetative growth, then into larger blocks or slabs for flowering, making better use of vegetative space.
Your facility layout, transplant strategy, irrigation approach and crop-steering goals all influence substrate selection. Browse our Grodan Improved, Grodan Max and Pargro product families to find the stone wool products that fit your operation.
Find practical guidance on choosing the right Grodan products, setting up your system and managing your cannabis crop.
Connect with our team to discuss product selection, transplant strategies, and growing system configurations for your operation.
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