I have been growing peppers in containers for several years and now and can attest to the vigor in which they grow. In the old days, I used to travel behind strip malls all over town trying to find discarded food buckets (grocery stores and fast food places are the best. The target was the white 6 gallon plastic buckets. With minor modifications of removing the metal handle, cleaning and drilling 1/2 inch holes in the bottom, they were ready to go. Living in the Southwest I needed something that wouldn't absorb too much UV and the white plastic seemed to do the trick. One year I had a 6 ft Isleno Mulato that grew VERY well in a 6 gallon bucket. It was large enough to grow past my 5 FT plant stakes. Now that I have moved on to better places I have abandoned the buckets and bought the "nicer" pots from Home Depot. Most of the larger podded types are in 18 inch pots that roughly handle 7 gallons of dirt. I even plant my tomatoes in the 18 inchers (they grow well too).The smaller podded types are in 14 inch pots with about a 4 gallon capacity. The dirt is regular cheap potting soil with an addition of perlite. I mulch each pot with bark that comes in the 5 pound bags. I think the bark was intended for it's aesthetic value more than it's mulching value, but when the wood gets soaked I swear that it cuts the transpiration down. I fertilize with Miracle Grow and Peters 20-20-20 with a sprayer on the end of the hose. I hook the hose up to the cold water outlet of the washing machine with e Y valve. This sure cut down the traffic through the house carrying buckets of water. The hose sits next to the washer when it's not in use and I pull it out when needed. What a savior...... With these methods, I usually have an over abundance of peppers (which makes my neighbors happy), not to mention tomatoes. One plant already has about 6 tomatoes that are turning red. Maybe it's my green thumb but my peppers do as well as they ever did in the ground. My Red Habanero is about aft tall with a aft canopy, the Thai Dragon has about 150 flowers blooming, the Pusa Jwalla has about 100 flowers, the De Arbol has about 75 flowers, the Chiltepin has about 10 flowers but is aft tall and 3 years old, the Anaheim is aft tall and just sprouting flowers this week. This is just an example of what's happing in my garden. All the plants are a lush dark green and could not possible do any better than they are right now. My neighbors think I am somewhat of a fanatic with all these plants on my balcony but who cares, some like it hot. So the rest of you apartment dwellers, don't despair, if you plant them.......they will grow......