Cherokee Purple Tomato Seeds Heirloom Vegetable. Dating back to before sometime before 1890, Cherokee Purple is one of the earliest recognized types of the ‘black’ coloured tomatoes. Large, flat, purplish-pink fruits are dense and juicy with a superb sweet taste! Fruit average 275-325 g (10-12 oz) in weight. The very unusual interior colour ranges from purple to brown with a touch of dark green.