90 Days to maturity (from transplant). Solanum lycoperscium. Beefsteak Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. One of the largest and most popular commercial-slicing tomatoes available, the beloved Beeftseak tomato routinely weighs in at more than a pound per fruit without sacrificing any flavor. Beefsteak tomato seeds have served as the parent crop for countless of large competition-size favorites such as Brandywine, Cherokee Purple, and the Mortgage Lifter. Approximately 10,00 seeds/ounce.