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GRODAN GRO-BLOCKS Delta 4, 3" x 3" x 2.5" w/ Holes

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GRODAN GRO-BLOCKS Delta 4, 3" x 3" x 2.5" w/ Holes


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Seeds or cuttings are started in these Grodan Gro-Blocks and, once rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can be planted directly into containers for soil gardening as well.

This is a strip of eight 3"x3" x2.5" Gro-Blocks, each with pre-formed holes.

Grodan stonewool is known for its quality, consistency and performance. 

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