Grodan2" x 2" x 1.5" Mini Blocks Grow Media Rockwool Stonewool Cube Propagation W/Twin Canaries Chart - Quantity 24

Very happy with these. Soaked before just dropping a cannabis seed in each cube. Didnt soak the seeds beforehand or anything. I had 95% germination rate in about 72 hours. I used with autoflower seedlings so i could cut down on transplant shock (i prefer not to start them right off in their final pot). Worked great. Ill only be germinating with these cubes in the future.

I can sow my seed directly into the grow block, move the block after germination to my hydroponic garden and leave the plant in it through harvest. Excellent product.

These have always worked great for germination of all seeds.

I much prefer the GH peat plugs for starting seeds. These are hard to work with because you have to PH balance them before using. With the GH plugs you just get em wet and wait.

Rockwool that I purchase from you guys is definitely a grade A product Is after this hurricane bypasses Florida I'm going ahead and order 2 packs.

have used for years,works best for my seeds

I didn’t like them. Switched to a different medium.

came in OEM packaging, just like i expected. Thank you. I will order again.