Primrose wrote:did you actually grow them for humans to eat, and what do they taste like? I imagine they're rather like a swede?
I've never tried cooking & eating them. I do grow them specifically for winemaking, after being introduced to them by my late Father in Law. He was raised in the lore of country matters in Gloucestershire and worked on farms where Mangels would have been grown for animal feed. He also liked to make his own wine, hence the connection.
Apart from swede, I believe they may have a few things in common with Sugar Beet.
I don't know who discovered this, but if you slice & simmer them in water for an hour or so, the resulting liquid is quite aromatic. Fermented with sugar, lemon juice, yeast etc (recipes available on request

) it produces a very nice wine. I have threatened to bring some to Malvern; unfortunatley the last batch was so nice that I've finished it and the current lot won't be ready by next Autumn, so I think we're talking about 2009!
Guess it would be a shame to miss out on this by eating them

However, as the hilarious Mangold hurling website shows, sheep do get to eat them.
Colin