I had no problems growing a single red rocoto, and later a manzano amarillo that was isolated from the others.
Brien

All chiles are self pollinating.

Well, I'd get another one. Not for pollination but because they're scrumptious!

I think I will, they are very appealing to me! Especially because my climate just barely frosts, and I think with some cover I can overwinter them outside, since they will be in pots already I plan to move them around to get sun and protection throughout the winter.

Anyone have experience overwintering these outside?

I don't have experience with these, Phil, but I've heard of a guy overwintering them in San Fran.

Josh

The thought of a big meaty bell pepper with the kind of heat I am looking for is so appealing. I want to stuff them with all sorts of junk!

The question is, can I really add another huge pot to my patio area. I am sure I will find a way.

-Phil

I have overwintered them here in Christchurch, New Zealand (lat. 41 S). We get some fairly hard frosts here but I had them against a brick wall facing the sun and with an overhanging eave, and I threw a frost cloth over them on bad nights.
Brien

I have no problems here with winter temps,but we get mid 30 degree temps for only a few days at a time for only a few weeks a winter.

One plant by itself will do just fine as far as pod production goes.
THEY GET BIG!
They will put out pods in early spring and early fall.
I have pods ripening on a mite survivor now and buds on the ones I started in Dec.
My plants get total southern exposure and as long as the pots are big enough the sun doesn't bother them much.
Gotta keep them watered in the heat.
I don't think they really have a problem with the heat as long as they have enough root space.
In small pots they cooked in the heat.
As soon as I put them in #15(7 1/2 gal.) pots or true 15 gal. to 20 gal. pots I had no more problems on 100 degree days.

I have it in a 5-ish gallon pot right now, but it is plastic and I think it will fry in the heat. Considering painting it white. Also, whether it would be worth it to stick a more heat tolerant pepper in the plastic pot and use a good terracotta for the Rocoto.

I will worry about overwintering later, for now I am preparing for the heat! Gotta get the 2nd Rocoto potted in a hurry if it is going to have a chance!

I always have a few of these growing and have had good luck overwintering here when we don't get down below about 25 degrees. This past winter we had three nights that got down to 26 degrees, and on one of those nights I didn't get outside to throw a sheet over them... 3 of 4 plants survived and are now growing strong and starting to flower. They do get big. I had one red that reached about 7 feet high and 6 feet wide and produced far more than I could eat. Mine are along a SouthEast facing wall that gets shade by midafternoon in the summer but full sun the rest of the year. They don't need a separate pollinator, but they will sometimes cross ( I have a plant growing right now that show hybrid vigor )

Oh man am I glad I went back today! I got the last "Orange Manzano" that they will have this season. This particular nursery guarantees their plants, they said they will not have more batches of pepper starters because if they are not planted soon they will succumb to the heat.

Got one in a 5 gallon terracotta, going to move the other to a big 10-ish gallon and see how they compare.

I cannot wait for a passerby to try and steal one of my "Bell Peppers." They are in for a surprise!

Is there much taste variation between the different colors of Rocoto peppers? Or is it like bells in that respect?
-Phil

Beth from Peppermania describes the Manzano Amarillo as "probably the best pepper that you will ever taste". Although I don't know if that is true (could depend on individual taste), it certainly does have a great flavour, quite a bit different from the red rocoto.
Brien

Here is a link that might be useful: Peppermania Manzano Amarillo

Well now you got me even more excited to try the, Brien. I got the new one into a big 10 gallon terracotta today, going to let that guy go with a big cage and see how it does in the hot weather. The smaller pot I will be able to move around more freely for shade, because it WILL need it.

Although, so far, the Manzanos wilt less than most of my annuums.

Manzanos can be grown on trellises like grape vines and can get something like 20 feet long.
Mine get trimmed to 5-6ft, high X 4ft wide in true 20 gal. plastic containers.

Here, I have to keep mine in smaller pots. Last year I had some in 1gal pots. I tried to overwinter 2 and killed them from root pruning and changing the medium, so I had to start over. I only have 2(yellows)this year, but I will be keeping them in the same pots when I bring them in for the winter. If they survive I'll pot them up next year(for hopefully a larger harvest)and take cuttings to overwinter as I have no room for large plants in this apartment(sigh).

A single plant should be able to fertilize itself. Possibly your local pollinators don't find it attractive enough? You may need to fertilize by hand, then you may get fruit for every flower.