Indeterminate. The Black Krim tomato is a striking heirloom variety known for its rich flavor and unique appearance. Originating from the Black Sea region of Russia, it produces large, dark red to purplish-brown fruits with green shoulders, average weighing around 8-12 ounces each, but can get up to 1 pound. The flavor profile is deeply sweet and slightly salty, making it a favorite among tomato connoisseurs.