I'm not surprised. If the root system is unrestricted then the plant will grow better. If the roots are locked in by a small pot then growth will slow down.

Obviously there is a limit to getting a noticeable difference though. A 3ft plant will probably grow just as well in a 10 gallon bucket as a 15 gallon bucket.
smoketoker Reviewed by smoketoker on . Pot/bucket sizes. What do you use? Im curious as to what size pots people use for indoor growing. The plants I have vegging right now were clones that first got put in a red dixie cup, then moved to a 1 gallon pot for about 2 weeks. Then about a week ago i transplanted them to 3 gallon pots. So im thining in about 2 weeks ill transplant them again. I want this to be my last transplant, so should I do 5 gallon buckets or go bigger? I have some plants flowering right now in 5 gallon buckets, but I think I could yeild more if i Rating: 5