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How do you grow the world's heaviest onion?
Gardener Peter Glazebrook has won top prize in all six classes of the giant vegetable contest at the Harrogate show and has broken the world record for the heaviest onion.
The 68-year-old's latest giant onion has weighed in at 18lb 1oz.
The BBC's Jenny Hill went to meet Mr Glazebrook to find out the secrets behind his vegetable growing success.
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