65-75 Days to maturity (from transplant). Capsicum annuum. Pepperoncini Italian Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, drought tolerant, sweet pepper with mild heat levels. 100 to 500 Scoville Heat Units. Suitable for growing in containers, garden plots, raised beds, and greenhouses. Pepperoncini Italian peppers have a thin, sweet skin that is perfect for pickling and growing in small spaces. They are 3-5 inches long and 0.75-1.5 inches wide. Bushes are relatively small and grow up to 36 inches tall. ~3,400 seeds/oz.