Flowers that are edible rank in my faves! Black Locust, and other Robinia's (genus) come to mind. Eastern Red Bud flowers.... Ox-Eye Daisy. It just makes you feel so awesome, like you're in a fantasy world when you can place a flower in your mouth that was harvested straight from nature, chomp on it, and it is scrumptious! :)))) (not all edible flowers may be scrumptious:))
Ox-Eye Daisies create a particularly fantastical experience for me when I eat them :)
There was a plant I met today at the botanical gardens in Washington D.C. that had flowers which smelt like chocolate cake. Don't believe it to edible, but it was a fascinating flower. The scientific name was Hoya Cornosa, common name Wax Plant.
Just learned it is easy to grow and a common house plant, when googling it! Cool!.!