Dark tomatoes 'healthier' than red variety, according to plant scientists 'Indigo Rose' starts green as normal but ripens into jet black Already popular in America, going on sale for first time this spring

By Ben Spencer

PUBLISHED: 10:32 EST, 23 March 2014 | UPDATED: 12:11 EST, 23 March 2014

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Unusual: The jet-black variety is said to be healthier than its red cousin as it has more anti-oxidants

We're already growing purple carrots, yellow courgettes and white asparagus.

But black tomatoes are the must-have crop for greenhouses this season, growers say.

Not only will the dark toms turn heads at the allotment society, they are also healthier than normal red varieties, according to plant scientists.

Read more:

Black tomatoes known as 'Indigo Rose' are the latest colour food craze