what size rockwool cubes should i use through an entire grow? guessing i plan on the plants being about 3-4.5 ft.
decent size bit it really doesnt matter the rockwool is just a medium. long as you can keep the plant stable your good. but to keep it easy go big
you really only need the 1.5" cubes that they start in then you can bury it in your medium when it has roots poking through
wouldnt it be easier to just get the 4 inch ones and know their gonna support it? i dont think i even heard of 1.5". i know i would save myself some money but im only doing 2 plants. i would rather just not run into any problems that i dont have to. well even 2 inch ones. would they be better?