80 Days to maturity (from transplant). Capsicum chinense. Mushroom Yellow Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, hot pepper with extra hot heat levels. 100,000–300,000 Scoville Heat Units. Suitable for growing in containers, garden plots, raised beds, and greenhouses. Mushroom Yellow peppers originate from Jamaica in the Caribbean and have a flattened mushroom shape similar to a bell. They go from bright orange or green and ripen to yellow. Each pepper is 1 inch long and 1.5 inches wide, with tender, spicy flesh. Also known as Yellow Squash or Yellow Mushroom Chile, it delivers a potent heat comparable to habaneros, accompanied by a fruity, citrus-forward flavor that enhances a variety of dishes ~5000 seeds/oz.