SV1000 said:
Honestly, I did not think of that...any drawbacks to letting them grow together?
This is exactly what I'm trying to figure out myself. Every how-to article or related forum thread I've come across on the Web mentions thinning them out by cutting or pulling them up. The reasons make sense: no fighting for water and nutrients in the soil or sunlight being blocked. However, for a couple reasons, I'm unconvinced.
Last year I planted all my pepper plants in a well-shaded area that really doesn't get much light; in fact, I was afraid none of them would be productive at all. In reality, they performed quite well, and this year I intend on using my last year's "sunflower garden" for many of my peppers since it gets far more and better light (mostly afternoon, late day and sunset light).
Also, last year I bought a pack of Bonnie Plants cayenne pepper plants. It was a container with about 9 very tiny compartments that were maybe 2-3" deep and very thin (the top was only maybe an inch at the most, likely less). They were root-bound, and many of the compartments contained up to 2 or 3 plants. To make matters worse, they got the shady part of my garden, since my preferred pepper varieties got the spotlight.
Being root-bound, growing within less than an inch of each other, in the shade, and--to top it off--blocking each other's little light they did get, they sure did produce well. I *still* have lots of cayenne peppers left from last year, those things went wild. Only two or three didn't make it, and those had to be cut off due to wind damage early in the spring. Later on, being so close to each other actually helped them to stay standing in strong wind. I managed to keep them going until I finally decided to give up, a full month after the first frost.
This year, I planted 2-3 seeds per peat pellet, and due to space concerns and the fact that I want to try and get the most peppers, will likely try to keep as many as possible alive for transplanting. I'll probably only cut the plants that look like they're going nowhere, and keep them all in the same container. Whether I'll have any luck or not, I don't know. I'll see. This being my first time growing from seed, it could flop before they even get transplanted out in the garden, so my plan B is to order some from ChilePlants.com soon (mostly Chinense species, especially some super-hots) and buy some Bonnie Plants from the nearby Lowe's or Walmart if I need to as a last resort.