A rare member of the Thai pepper family, Purple Thai peppers have a perfect balance of flavor and heat which makes them a popular pepper for Asian cuisine. Purple Thai peppers are used in many Thai and Asian dishes and there are also numerous products that use Thai peppers as a main ingredient, including pepper flakes, hot sauces, and marinades. Purple Thai peppers are about 3 to 4 inches in length, mature from purple to orangish red, and have a medium heat level. They average about 50,000 to 100,000 Scoville Heat Units, which is hotter than a Cayenne pepper but not as hot as a Habanero pepper. Purple Thai pepper plants are easily grown in containers, making them an ideal pepper to grow on a balcony, patio or deck. They grow and ripen early and produce all season long.