Exactly I control the roots and root development fabric pots allow for root pruning VIA the air and if I need to move them or give them a quarter turn daily I can do that I like my plants to dry out which means I can water more although I wish I had gone with 50 or 100 gallonsWhy not go right into the ground ? I'm clueless as to what Canada's soil is like though. Is it to better control what ur plants receive in neuts ? I use bottled neuts indoor but strictly organic outdoor.