Ely, Cambridgeshire food company Isleham Fresh Produce is growing a crop of purple carrots, which are due to hit the shelves of UK grocery giant Sainsbury in July at a slightly higher price than their orange cousins. The violet veggies are actually closer to the original carrots first grown in the Middle and Far East, the supermarket supplier said yesterday [Thursday]. Carrots have only been orange since the 1720s, when the Dutch decided to cultivate a crop in their national colour.