Grodan® GRO-BLOCKS Delta 6.5, Small 4" with Holes | Packs of 6 | Case of 36

Grodan® GRO-BLOCKS Delta 6.5, Small 4" with Holes | Packs of 6 | Case of 36

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GRODAN® Stonewool Delta Gro-Blocks

Stonewool is recognized the world over as an ideal hydroponics growing medium. Seeds or cuttings are started in these larger Grodan Gro-Blocks and, once rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can also be planted directly into containers for soil gardening. This is a strip of six 4" x 4" x 2.5" Gro-Blocks, each with pre-formed holes. Grodan stonewool is known for its quality, consistency and performance. 

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