Rockwool Grodan Cubes Sheet of 98 Cubes

Rock wool is made from molten rock spun into fibers like cotton candy. They are great for rooting cuttings or germinating seeds. Soaking them overnight in water and adding seeds or cuttings the next day is recommended. From there you can transplant into any growing medium, soil, or hydro. Rockwool is very versatile and will grow plants for months.