Grodan Gro-Block Improved Big Mama, 8" x 8" x 8 " (Case of 18) rock-bottom but it's also food safe

but it's also food safe

It contains polysaccharides folded into a matrix fortified with an emulsion of trace minerals

place contents in a coffee filter and hang it in or staple it to plant or tree foliage

for wheatgrass and microgreens cultivation

Grodan Gro-Block Improved Big Mama, 8" x 8" x 8 " (Case of 18) rock-bottom but it's also food safeGrodan Gro Block Improved Big Mama, 8" x 8" x 8 " (Case of 18) 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 substrate volume.