stick with 3 gallon.i think rule of thumb is i gallon per foot of plant.1 foot plant one gal pot 3 footer 3 gal pot etc.
c of green Reviewed by c of green on . POT SIZE QUESTION I'm growing indoor, in a small closet (3ft x 2ft x 8ft) with 800 watts of metal halide light. I want to know if the pots that I'm planning to use, which is 1.5 gallon, would be enough so the plants won't have any problems in a pot this size? Also, the plants are so crowd in there, will I need to worry about the lightning not getting to all the plants or will that much light penetrate through? Right now, I'm potting 6 plants in 3 gal pots but with this pot I'm only able fit 6 plants. But if Rating: 5