Anaheim Hot Chili Pepper Capsicum Annuum Vegetable Seeds. 80 days. Milder than some, these meaty chilies are 6 to 8 inch long and 2 to 3 inches wide, tapering to a blunt point. They grow on 28 to 34 inch plants. Scoville units: 500 - 2,500. We will not carry any GMO seeds. The Anaheim Chili Pepper is a mild to medium heirloom chili pepper that is commonly used in Mexican, and other spicy dishes. It is the most commonly used variety for chile rellenos. The Anaheim Chil Pepper is large, colorful, and tasty.