Green Calabrese Broccoli Sprouting Seeds. Non-GMO, Heirloom Seeds. 60-90 days. Dark green 20 - 30 inch broccoli plants bear a close-beaded central head 3 to 7 inches across. Calabrese broccoli is also known as Italian green & is the most-common variety of broccoli in the United States. Its signature main head is surrounded by several side shoots that resemble a very compact, green flower. Once the main head is cut off the plant will continuously produce many broccoli shoots during the season. Extremely flavorful heads of broccoli. 60 to 90 Days to Full Maturity Annual Crop Not Intended to Over-winter All Zones in the U.S.A Certified Organic Vegetable Garden Seeds Non-GMO Heirloom Open Pollinated Broccoli, Green Calabrese - Ngo Gmo Premium Seeds