Grodan Improved Jumbo, 6 x 6 x 4, with hole, case of 64 hydro-logic This allows your plants to

This allows your plants to achieve a balance between respiration and photosynthesis in high intensity growing environments where the rate of respiration can sometimes exceed the rate of photosynthesis

This 2-part blended liquid formula should be used in equal amounts during the veg phase to stimulate the rapid onset of bud production

and forces you to flush thoroughly before harvest -- it wastes time AND money

Supplied with 2x AAA alkaline batteries

For organic gardening

Grodan Improved Jumbo, 6 x 6 x 4, with hole, case of 64 hydro-logic This allows your plants toGrodan Improved Jumbo (White Foil) 6 x 6 x 4 (Case of 64) Grodan Improved Grodan 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 our Advanced Wetting Agent. These leading edge blocks have the