IS IT POSSIBLE TO GROW VANILLA IN THE UK?

In the 19th century the Marquess of Blandford grew vanilla vines in a glasshouse. There's a vanilla vine growing in the Royal Botanical Gardens in Kew. John Dean successfully grew vanilla vines from cuttings in a greenhouse in Surrey by carefully controlling the temperature, moisture and shade. BUT we're not aware of anyone managing to produce vanilla flowers or vanilla beans in the UK. That's not to say it can't be done, but what is certain is the conditions would have to be exactly as in a tropical environment.