David's Garden Seeds Zucchini Costata Romanesco SV2053A (Green) 50 Non-GMO, Heirloom Seeds Harvest in about 80 days Seeds are Non-GMO and hand packed by David's Garden Seeds in the United States Distinctive Italian zucchini, prominently ribbed Medium gray-green, with pale green flecks and ribs Germination rate about 80% or better