Blue veronica with ferns. Gorgeous for the shade garden // Great Gardens & Ideas // is what it is originally tagged as, but I could swear it looks like blue forget me not snuggled in with the beautiful fern!
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.