Grodan Rock Wool Gro-Blocks


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Made from molten rock spun into cotton candy-like fibers and then compressed into cubes
Use to support the requirement of the plant in the different plant stages
Absorbs nutrient solution while retaining plenty of oxygen for rapid plant growth
Seedlings started in cubes are easily transferred to blocks and then onto slabs
Seedlings or cuttings started in cubes can be transplanted into more traditional planters

Additional information


Delta Big Mama Block 8 in x 8 in x 8 in, Delta 5.6 Large 3" 6 ct, Grodan Expert Slab 20/75 8 in x 3 in x 36 in, 1.5" with Hole – 45ct, Delta 4 Small 3" with Holes – 8ct, Delta 10 Large4" with Holes- 6ct, Hugo with Holes, 6" Single, Grodan 4" Block Single