$/ each

SKU 408652 408642 446182 447252 406502 408802 408732 408692 408712 408672 408812 403682 408842 402012 408872 444242 447152 408892

🔆 0 0 0 0 1 0 1 0 1 1 1 0 2 3 5

.15 .28 .57 .66 .07 .63 .48 .71 .73 .80 .48 .81 .22 .86 .51

💧 0 0 0 0 0 0 0 0 0 1 1 0 1 3 5

.15 .19 .44 .61 .59 .55 .96 .68 .95 .17 .03 .80 .49 .81 .12

🍅 0 0 0 0 0 1 1 4

.18 .35 .53 .89 .87 .04 .28 .17

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.