There's a new superfood on the block - a genetically modified purple tomato, produced by scientists using snapdragon DNA. After 20 years of research, green thumbed folks in the US can get their ...

Move aside, blackberries and grapes. One of the most vibrant violet plants in the produce aisle, garden and salads will soon be the purple tomato. About the size and shape of a cherry tomato ...

Some gardeners grow tomatoes in a rainbow of colours including red, yellow, orange, green and even burgundy. But purple? The United States Department of Agriculture (USDA) last month signed off on ...