Rockwool Cubes 1.5" Pack of 45

I am definitely ordering from these guys in the future. Great product and I have almost used all of them. They all work great and have produced amazing results. Rock wool works great for getting your seedlings to start and for cloning. We do lots of tomatoes and this is a great product for that purpose. You really cannot over water with rock wool. The material stays together and allows for excess drainage while retaining the needed moisture. I have tried other products and Grodan Rockwool is definitely at the top. As for the seller, the product was shipped immediately and I got them right when I expected them. Thanks!

I had a few problems in the past using rockwool cubes for germination in the past but these cubes were just terrible,.........only around 20% germination success and half of the seedlings died before I could transplant them. Maybe I just got a bad batch of cubes, but I am not going to risk expensive seeds on rockwool cubes again.

These are ok, I noticed most plant roots had a hard time breaking through. Might have been my fault not letting them soak long enough.

Not bad they do what there supposed to. Just make sure to set your germinated seed about 1/4 in from the top and the block should do the rest. Easy to use👌🏽

These work great, I bought a cheaper alternative and they were awful. Definitely worth the few extra dollars for these

I have had 95%+ strike rates for years using these cubes and Clonex liquid. Under a dome I always get first roots in 7-10 days. I would not recommend these for starting seeds, but they are perfect for clones.

smaller than i thought

I have a 100% germination rate in these!!!!!