Grodan Delta 4 Block 3X3X2.5 384 Per Case
Grodan Delta 4 Block 3X3X2.5 384 Per Case is backordered and will ship as soon as it is back in stock.
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Grodan Stonewool (rockwool) is produced by spinning molten rock into fibers resembling cotton candy, which are then compressed into various forms such as cubes, blocks, or slabs. Unlike other rockwool brands that cut all sizes from a single batch of wool, Grodan creates different types of fibers to cater to the specific needs of plants at various growth stages. Grodan's unique composition allows it to absorb a large amount of nutrient solution while maintaining ample oxygen levels, promoting rapid plant growth. Available in graduated sizes, seedlings started in cubes can be easily moved to blocks and eventually slabs if needed. Alternatively, seedlings or cuttings started in Grodan cubes can be transplanted into traditional planters and other growing mediums.