Grodan Gro-Block Improved GR6.5 Small 4'' (4''x4''x2.6'') | Case of 216 unwrapped Clay 5' (60") wide x 225'

5' (60") wide x 225' long

Our 16 quart capacity black plastic buckets give your larger plants an excellent home

A Natural Fungicide for Indoor Plants

and close it back up the same session

Stage what a run needs and reseal the rest

Grodan Gro-Block Improved GR6.5 Small 4'' (4''x4''x2.6'') | Case of 216 unwrapped Clay 5' (60") wide x 225'Grodan Gro Block Improved 4x4 for Precision Growing These stone wool blocks feature advanced wetting technology for even water content and EC throughout the entire substrate, enabling faster rooting in and consistent plant development. The optimized fiber structure supports stronger roots that fully explore the block, improving water and nutrient uptake while reducing overall inputs. Backed by collaboration with Wageningen University & Research and