70 Days to maturity (from transplant). Solanum lycopersicum. Atkinson Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, humidity tolerant, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Atkinson Tomatoes come from Auburn University, where it was developed in the 60s. This tomato is perfect for the deep south where it is extremely humid. They develop medium sized bright red fruits. The plans can get extremely tall and are very prolific. ~7,500 seeds/oz.