50-60 Days to maturity. Cucurbita pepo. Black Jade Hybrid Summer Squash Seeds. Non-GMO, annual, F1 hybrid. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to powdery mildew and squash vine borers. This sleek, dark purple zucchini summer squash boasts tender flesh and a mild, sweet flavor, making it great for grilling or sauteing. ~125 seeds/oz.