Poblano is a mild variety of chili pepper. They are named after their supposed place of origin, the state of Puebla in Central Mexico where they are believed to have been first cultivated. The pods typically grow 4 inches long, are a very dark green in color, ripening to dark red or brown. Their heat can be described as mild to medium-hot, ranking between 1,000 and 2,000 Scoville heat units.