Grodan Gro-Block Improved GR5.6 Large with Hole, 3" x 3" x 4" (Case of 256) spl_spectrumking Blow your pot roots out

Blow your pot roots out of the pot and your results out of the water

The oscillation range offers total tent coverage and can navigate obstacles

you usually need additives to achieve desired levels for your plants

including challenging fragile-stemmed varieties

ensuring the PRO White lining runs cooler compared to a standard Mylar tent

Grodan Gro-Block Improved GR5.6 Large with Hole, 3" x 3" x 4" (Case of 256) spl_spectrumking Blow your pot roots outGrodan Gro Block Improved GR5. 6 Large with Hole, 3" x 3" x 4" (Case of 256) New 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. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire