75 days. One of the most popular chili peppers in Mexico. When used fresh, these mild, heart-shaped green peppers are called Poblanos, and are use to make in the classic Mexican dish, Chili Rellenos. When dried, the red fruit turns a rich, dark red-brown and is known as an Ancho chili, and can be ground to make red chili powder. Poblano peppers have mild heat, usually around 2000 Scovilles.