Grodan Gro-Block Improved GR22 Jumbo with Hole, 6" x 6" x 4" (Case of 64) lamps extending the root system's reach

extending the root system's reach and improving access to water and nutrients — particularly phosphorus

black powder-coated frames made from 25mm tempered rolled steel

the plant can focus its energy on flowering and essential oil production instead of on producing food

It is also compatible with the Spider Farmer GGS Controller for even more advanced features and control

The PowerVEG 660 produces a red light spectrum that enhances the flowering stage for plants and is essential for triggering fruiting and flowering

Grodan Gro-Block Improved GR22 Jumbo with Hole, 6" x 6" x 4" (Case of 64) lamps extending the root system's reachGrodan Gro Block Improved GR22 Jumbo with Hole, 6" x 6" x 4" Case of 64 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