I went on the River Cottage website because of their hempseed oil and got help in the forum from some nice person. Apparently Hillfarm Rapeseed oil which is sold in Waitrose is IN at 97.37 miles from Richmond. Hooray! And thanks to the UK Postcode Distance Calculator
Learning about plants with an edible ecosystem nature garden, plus wild food and foraging, and occasional forays into books, recipes, films and other related ephemera