horticultural company in U.K. is marketing revolutionary new plant that grows both tomatoes and potatoes. It is called TomTato and yields up to 500 sweet, cherry-sized tomatoes and healthy crop of white potatoes. Britain's Daily Mail newspaper joked you can now get ketchup and fries from same plant. company, Thompson and Morgan, began research into possibility of grafting together tomato and potato plants over 15 years ago. Paul Hansord, horticultural director at company, said great thing about the plant is that it is not genetically modified in any way. He said he knew it was possible to graft two plants together because they belong to same plant species. Mr Hansord explained how commercial concept developed. He said: "At start, we thought it'd just be novelty thing to do. But as trials developed, we realised what we had produced was really high yield, had fantastic flavour and could be done commercially for first time. TomTato is being dubbed as "veg plot in pot". Hansord said it can be grown inside or outside, in large flower pot or in bag. It is selling at around $25 on company's website. Britain's Telegraph newspaper said: "'Double-crop' plants like TomTato could be extremely useful in future, as they help populations grow more food in smaller spaces."