60-80 Days to maturity (from transplant). Solanum lycopersicum. Double Rich Tomato Seeds. Non-GMO, warm season annual, open-pollinated, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Also known as Doublerich. Double Rich was developed in 1953 by A. Yeager at the University of North Dakota and the University of New Hampshire. It develops 4- ounce red fruits with twice the amount of vitamin C as other varieties. Approx. 6,800 seeds/ounce.