Grodan Gro Block 1.5" Improved Mini Block Shrink wrapped/Strip 45pcs groline They separate excess leaves and

They separate excess leaves and cut twigs from a variety of plants and flowers

non-systemic and safe for people

horticultural-grade vermiculite

Rinse with hose regularly and change every 6-12 months

Flowering Cycle: Assists with nutrient uptake

Grodan Gro Block 1.5" Improved Mini Block Shrink wrapped/Strip 45pcs groline They separate excess leaves andGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research and trials is Grodan Gro Blocks Improved with Grodans Advanced Wetting Agent. These leading edge blocks have the optimal fiber structure and physical properties for crop uniformity, more