So, I'm growing a tomato plant from seeds that were given to my mother from a cousin who passed away last Fall.  She said her family had grown this 'purple tomato' for years and always saved seeds.  I don't know what purple variety it is, exactly...perhaps once the fruit shows up I will be able to identify it, w/your help I hope.  In the meantime, I'm watching the buds form & soon a blossom will open, but I did notice today the blossoms are quite large compared to many other tomato blossoms I've seen...reminds me of a mini sunflower.  Can't wait for it to open!  Stay tuned...