Earlier this season I wrote about how the seeds from last year's yellow peppers were producing sweet red oblong peppers. I wasn't sure why this was happening.
When I harvested seeds two years ago and planted them last summer, all of the plants produced yellow peppers.
A co-worker told me that the seeds were from a hybrid yellow pepper so they would be a mix of different types of peppers. The fact that I had one season of all-yellow peppers was a matter of luck.
This summer half of the plants from the seeds of a last year's yellow pepper plant produced red oblong fruits and the other half produced the typical yellow square peppers.
I am not saying it was an even half because I gave lots of friends yellow pepper plants that might have been reds. No one has complained so I don't really know.