Thank you everybody for the "Huckleberry Lectures". When I spent four amazing weeks in New England in 2002 I just loooved the blueberry cheescakes, blueberry icecream, etc (I also fell in love with lobster and clam chowder). I come from the very North of Germany and there are a few areas of heathland where blueberries grow wild and my grandmother's blueberry jam was amazing.
But let me throw in something else: For years I had a lovely friend in Alaska. She unfortunately died 4 years ago, and I will always miss her. She introduced me to moose by sending me a moose calendar every year, and her family picked fireweed flowers summer and made fireweed jelly. There was always a small jar in my Christmas parcel from her, despite the weight. I had never come across anything tasting like that, and I can't describe it, but I loved a slice of toast with a little fireweed jelly or a spoonful with some vanilla icecream.
We have the same plant here in the UK, but it's called Rosebay Willow Herb. I looked into it some years ago and was surprised how many uses there used to be for that plant - most of them long forgotten. Today, you only see Fireweed on the edge of motorways where it grows as a weed.
And then there is "Sanddorn" (buckthorn in English). It grows in some coastal areas of Germany and England, and the yellow berries have a very distinctive (not sweet) flavour. It's another plant that is not used much today, but it makes really tasty jam.
It's getting late here and I better go and get some sleep........