Grodan Gro-Blocks Improved Rockwool

ROCKWOOL GROWING MEDIAUniform Plants and Excellent Yields Grodan Gro-Blocks Improved with Advanced Wetting Technology allows you to cultivate more uniform and high-quality crops that have faster rooting-in, higher yields, improved quality, and less water and nutrient usage throughout the entire crop cycle, batch after batch. Grodan Gro-Blocks have been a mainstay of professional hydroponic horticulture for almost two decades and continue to be used in grow rooms and greenhouses worldwide. The Grodan Gro-Blocks provide the foundation your plants need for healthy root development, vigorous growth, and optimal crop production. The stone wool substrate allows professional cultivators to grow more top-quality produce with fewer inputs.  The rockwool is lightweight, clean, disease/ pest free, and very easy-to-use.  The Grodan Gro-Blocks come in a variety of sizes ranging from 3in x 3in x 2.5in all the way up to 8in x 8in x 8in. Most come wrapped in packs but all sizes are clearly labeled wit