rockwool

[pwg_captin420]

What is the smallest size rockwool cube you can grow n from start to finish????:sign0065:

 

[DrCALIGREENTHUM]

Id say at least 4" with something under for the the roots if your looking for the smallest cube for a specific reason. There is smaller but i would not recommend limiting your plant to such a small root zone.

If you care about the size id go with the 6"s.alot more room for the rootsand plant itself

 

[pwg_captin420]

Thanx dr.cali. i was thinkn 6 r a lil bigger. Want to max my grow tent space without given up finishing yield any advice?

 

[DrCALIGREENTHUM]

There are many methods you can do sog, a semi sog, scrog you can top super crop
it all really depends on you and your strain

if your gonna use 4" i would do a semi sog in your tent

 

[hiboy]

Youll definitely need coco matts if your gona go the 4" route.
Or you could run rw slabs. Remember without a decent root base your plant will be limited
h

 

[mikeross]

I am planning a 49 plant per 1k grow using 4" blocks with rooted clones straight to 12/12. I have seen similar setups with 2 weeks veg in the blocks. No coco mat needed and results were very nice for a 7-8 week finisher with little to no veg.