100 Days to maturity. Allium cepa. Organic Stuttgarter Onion Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, bulbing, long-day onion. Suitable for growing in greenhouses, garden plots, and raised beds. AKA: Giant Stuttgart, Stoccarde. Produces slightly flat globes with bronze skin and white flesh. Approx 9,555 seeds per ounce.