44-62 Days to maturity. Cucurbita pepo. Organic Black Zucchini Summer Squash Seeds. Non-GMO, warm weather annual, open-pollinated, summer squash. While this variety is named ‘black’, this zucchini actually has a very dark green skin color. An open-pollinated zucchini, this variety is perfect for home gardeners and has a delicious flavor. Noted as being easy to pick and easy to grow, the white-fleshed and small-seeded summer squash is one to be grown! ~213 seeds/oz.