Blue Crown Passion flower. Exotic flowers like these don't have to be limited to tropical gardens. A vigorous perennial vine that climbs via tendrils, the passion flower can be a conversation piece in the garden. Evergreen to about 18 degF. Species vary from subtropical to hardy in USDA Zone 6., this one zone 7.
The legend of the name forget-me-not: A medieval knight and his lady were walking beside a river. The knight held a bouquet in his hands. Because of the weight of the armor, he fell into the water. He threw the bouquet to her, saying, "forget-me-not.