60-69 Days to maturity (from transplant). Capsicum annuum. Shishito Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom,, high yielding, hot-type pepper with mild heat levels. 100 to 1,000 Scoville Heat Units. Suitable for growing in garden plots, raised beds, and greenhouses. Shishito sweet pepper seeds are an East Asian pepper variety known for its slender and wrinkled appearance. A very mild pepper when compared to jalapeno, its smoky flavor is enhanced when grilled or roasted. Almost always harvested when still green, most shishito peppers will be mild and sweet but occasionally, a few individual peppers will be warmer than the rest. 100-1,000 SHU. ~5,000 seeds/oz.