The Fresno Chili pepper a medium-sized cultivar of Capsicum annuum. They are very cold-sensitive, but disease resistant reaching a height of 24 to 30 inches. Mild green ones can typically be purchased in the summer while the hot red ones are available in the fall. Depending on its maturity it has different culinary usages. Excellent source of vitamin C and B vitamins, containing significant amounts of iron, thiamin, niacin, magnesium and riboflavin. They are low in calories, fat, and sodium and help to reduce cholesterol.