I received some sort of green chilli pepper plant from a friend. (I don't know which kind; the flowers are small, white, and five-petalled.)
Usually, when the chillies are around a handspan in length, I harvest them. Since early frost is October 1st, I harvested the remaining few and left the plant to "hibernate."
Two days ago, I noticed a single, bright red chilli pepper growing on the plant.
What makes chillies turn red/yellow/orange? Is it simply a function of ripening time, after some length is achieved?