Grodan Gro-Block Improved GR5.6 Large with Hole, 3" x 3" x 4" - Case of 256 Garden Care 80 µmol/joule

80 µmol/joule

Combine with a CenturionPro XL Trimmer and achieve the highest capacity harvesting system in the world

The open top allows you to easily see your work and also fill it without having to remove the top

AIO BioPrecise is built on a foundation of specific species of beneficial bacteria and mycorrhizae that work to make nutrients more available to the plants

Do not rinse

Grodan Gro-Block Improved GR5.6 Large with Hole, 3" x 3" x 4" - Case of 256 Garden Care 80 µmol/jouleNew and improved stone wool substrate with advanced wetting technology from Grodan Introducing Grodan Gro Blocks Improved, a product specifically engineered to deliver real results for your crops, developed by plant scientists, researchers, and top growers. A core component of the "Precision Growing" philosophy, Grodan Gro Blocks Improved with Advanced Wetting Technology allow you to cultivate more uniform and high quality crops while using less water