Not sure what you mean about putting cardboard on top of the soil? Are you talking about extending the pots with cardboard wrapped around them?Quote:
Originally Posted by Buffalo Soldier
You could try cake stacking, i.e. a few weeks into flower you use the same pot and fill about 1/3 with soil and place the rootball on top of that, then filling in the sides. IMO, you will run into trouble with just those 3 gals for the entire grow :(
