Beefsteak Rainbow Mix Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Beefsteak tomatoes are a fun choice for home gardens. This is a mix of heirloom beefsteak tomatoes with a variety of colors, including the standard red, but also orange, yellow, and green. Beefsteak varieties are often preferred for their rich meaty flavor