SWEET BELL PEPPER: Bell peppers have a rounded, square shape with four lobes. They are hollow, with flat seeds inside. Bell peppers are the most commonly grown type of pepper in North America. Most bell peppers are harvested when they are still green, but when left to mature on the plant for a longer length of time, some peppers will turn shades of red, yellow or even purple.Sunbright Pepper Capsicum Annuum Plant produces good yields of 5″ long by 7″ wide bright yellow bell peppers. Peppers turn from green to bright yellow when mature. The sister pepper to Big Red, but yellow in color. Days to Maturity: 75