obchili said:
I am worried that I had overdid it now.
I think you may have. But that might not be that big of a deal. My advice would be to buy a good hand pruner. Like FlameThrower said, a lot of chinenses tend to have a very decurrent branching habit and will end up wider than tall.
But, they are your plants and it is your responsibility to "train" them. (Down boy!)
Prune or subordinate the outer branches of plants that are growing into others' space. This will make it easier to harvest, promote air flow and light penetration and prevent larger plants from completely swallowing smaller ones.
Last year, I made the rookie mistake (one of many) of planting a cayenne too close to a bhut jolokia. I had to keep lopping huge branches off the bhut just to give the cayenne a fighting chance. Ultimately, the cayenne lost - I think it set maybe three pods all season.
Lesson learned - plant smaller, more upright plants like annuums closer together and give big, spreading chinenses more room to do their thing. If I had your garden, I would've planted annuums in a staggered pattern on one half of the bed, and planted chinenses in a single row about 6-8" from the edge that doesn't abut the fence. (about a foot and a half from the fence)
Maybe something to think about - they've only been in the ground a day or two. One more transplant likely wouldn't set them back at all. Good luck!