80-90 Days to maturity (from transplant). Solanum lycoperscium. San Marzano Determinate (Organic) Tomato Seeds. Non-GMO, annual, open-pollinated, organic, heirloom, determinate, paste tomato. Suitable for growing in garden plots, raised beds, and greenhouses. These tomatoes are the type that pickers like because they are easy to reach and become ripe for harvest around the same time. San Marzano is from Italy originally but does extremely well on the west coast. ~7,500 seeds/oz.