Thai peppers are among the variety of super-hot peppers, along with chili and "Habanero" peppers. They produce attractive red peppers amid shiny green foliage, making them a decorative plant to grow. The Thai pepper plant can reach a height of 18 inches and produces peppers that are ready for use in only 40 days. Because minimal care is required to grow a Thai pepper plant, it is a good choice for beginner gardeners.