Another gem from the QI Fact of the Day:
When the potato first reached England, a potato-tasting banquet was given at the court of Queen Elizabeth I. Only the leaves and stems of the potatoes (which contain a poison called solanine) were served. All the guests became ill and left early.
The picture above is of the potatoes I am growing on my balcony, leaves bursting out of the growbag. As beautiful and abundant as the leaves are, we will not be eating them!