They're edible: who knew?
Took a trip to the NT Knighthayes Court today (just outside Tiverton in Devon). The kitchen garden is wonderful - well laid out and well labelled. There is a section of ground given over to tubers and, as you would expect, potatoes of varying cultivars are labelled, row by row. But there are two rows of dahlias, which, it is said, are edible. I never knew that! You learn something new every day!