Heirloom Tomatoes have flavors, colors and textures that are quite different than regular store bought tomatoes. These are the varieties that our grandparents and great grandparents grew many years ago that are full of anti-oxidants, vitamins and cancer preventing agents.
The colors normally determine the amount of acidity, darker colors are more acidic and lighter colors are less acidic. The more red a tomato has, generally follows with the amount of sweetness and green in a tomato, determines tartness. Yellow and orange varieties usually have a milder and sweeter flavor while purple and black varieties have a bold, rich, acidic flavor. Growing several of the different tomatoes available is a good way to find new favorites for your garden.