Rockwool to expanded clay

[Buddy]

I want to germinate some seeds in 1" rockwool cubes then put them into 6" inch netpots with expanded clay when the roots come through.

Is it ok to leave the rockwool attached to the roots or does it have to be removed the way I do it with seeds germinated in soil ?

[Ferre]

heya Buddy you can leave the whole rockwool cube as it is,..NO PROBLEM!

 

in fact,..I use only rockwool to grow on,..nothin' else and "down here" we allways leave them little cubes,..taking them of can only damage the fresh roots.

[Luke Skywalker]

Hey tboat, just wondering what your set up is with growool? I use it extensively in my hydroponics endeavors and I must say it's ensured healthy, well fed roots, almost any way I use it.

Oh, and for buddy, yeah go for it, just bury the growool so that only the top surface is flat to the expanded clay top surface. You can also use the larger blocks to go into a 6 inch pot as well.

I had a plant in almost entirely rockwool in a 6 inch wide, around 6 inch deep home made netpot, with only the bottom inch or so in the netpot as expanded clay, and this level of expanded clay is what was sitting in the nute solution of the bubbler. Great growth, and because the growool is highly aerated, allows for a lot more roots to fill the netpot space.

 

peace