The last harvest with the 5 gallon smart pots I pulled them up and was amazed at the fibrous root structure. It basically looked like a root sponge in the shape of the pot. The entire 5 gallons was filled with tiny fibrous roots.
Yes! You know Sapphire420, she used them as well, and had the exact same results: a positively solid root mass! I haven't harv'ed my better plants yet, in plastic pots, to make some kind of comparison, but regardless, her results tipped me over the fence on trying them on the HighRise gear I'm starting....
Yoda' makes a good point though about depth, and I know from Aunty Mossy's info thread that she uses nothing with less than 1' depth.... So, I guess a good question would be, how important is it to the plants tap root to have such (relatively) unobstructed depth vs. plenty of lateral volume to expand into.... Typically, (in the wild, say) I think that tap roots want to get down to where the moisture is nice and constant, away from the often increasingly drier surface/subsurface soil; laterals help max. surface area to take up both moisture and nutrients; I saw a new Nature program on PBS called "What plants talk about", showing just how responsive and complex their behavior is- a must see, absolutely fascinating experiments folks were conducting to test this... One root study put plants in specific nutrient deficient soils with a small patch of soil, sometimes
several feet away, with that missing nute in it, and study how the roots could 'sniff' out the minute traces of this missing nute and somehow guide the roots toward that patch! uncanny!.... Sensei JM, what do you think? :smoke: depth vs. width... <--(giggady!)