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Damien Lascelles at the Spanish site

The Watercress Company's sister farm in Spain is celebrating 30 years of production.

And to coincide with the milestone, Royalcress expects to hit the 10 million kilo harvest mark this year.

Established in 1986 by Charles Barter and Peter Mills, the first watercress beds were established at the site in Cadiz, where the favourable climate means that the product can thrive outside the traditional British season of May to October.

British consumers eat around 36 million bags of watercress annually - the equivalent of one bag every second.

Royalcress alone grows 10 tonnes of seed in a season, which equates to around 40 billion individual plants.

To maintain an element of British eccentricity at the site, Royalcress' technical and production manager Damien Lascelles walks among the beds 'piping' to the watercress.