Question of the Day: Why Are Bell Peppers Different Colors?
Quick Answer: Two factors impact what color a bell pepper will be; how long it matures on the vine and the variety of the pepper.
Some varieties of bell peppers stay green no matter how long they stay on the vine but not all. The most commonly grown bell peppers will start out green and then slowly turn red as they mature. Other varieties transition from green to yellow, and there are a few types of bell peppers turn orange when fully ripened.