NEW Grodan Hugo Gro-Block, 6"x6"x5.8", W/Planting Hole Lot Of 4 Blocks Grodan Hugo Gro-Blocks, each measuring 6" x 6" x 5.8" with a planting hole. These high-quality rockwool/stonewool cubes come from the Netherlands and are perfect for hydroponic gardening. Made from rockwool mineral fibers, they provide excellent drainage and aeration for healthy root growth. The Grodan brand is known for their superior growing media, ideal for a variety of plants. These Gro-Blocks are a great choice for anyone looking to start a hydroponic garden or upgrade their current setup. Their compact size makes them easy to handle and transport, while the planting hole allows for easy placement of your chosen
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