date:Oct 11, 2013
as I'm aware they have never, ever been grown in this country before.'
The tomatoes are believed to have been developed at Oregon State University, in America, forming part of their 'Indigo Rose' project. They are ripe when their colour changes from a shiny blue-purple to an almost jet black, with the bottoms of the tomatoes turning red.
The dark version of the fruit rich high in beneficial anthocyanins, which are compounds found in fruits, vegetables and beverages. Some believe the anti-oxida