I am using 2 gallons with a 4 week veg and I think that is pushing. I would say you can use the 1.5, but the 2 gals would be a little better if you can get them all in there.
Adieu
BlueBear Reviewed by BlueBear on . ADAQUATE POT SIZE.. ANY INPUTS? 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