I have some in 5-gallon (trade, really like 3.75 gallons) pots. Supported by little cheapo tomato cages. First time too -- they seem to be doing good so far. Lots of peppers set.

Will let you know how well they did in a year or so.

Very well draining soil, with LOTS of support for the plant. Those bells get mighty heavy, really quick. I feed mine (all peppers) with MG tomato formula full strength 1xweek (after mature). The more direct sun the better, but the pots will dry quickly when the plants are large - be prepared to water daily. I have about 13 1/4in holes drilled into each bucket (8 on bottom, with 5 around the side - about 1in up). As long as the soil drains well, and you have enough holes you shouldn't have to be concerned with over watering. In fact, I purposefully water till it comes thru the drain holes - it helps to remove any excess fert salts which can easily build up in containers.

Circled is a single red bell that I am growing - among all the other peppers.

Jay

Here's how they look now... Have about 15 on the plant. I'll have to wait and see for the second flush though - I hear the subsequent rounds tend to be smaller in size.

Jay

Jay, everything looks great!

Josh

Yes, good drainage and lots of food. I grew them in 5 gal buckets the last 2 years and they set lots of peppers.