Bluebells of Scotland (Campanula rotundifolia)Its small blue-violet bell-shaped flowers bloom in spurts from summer to fall. Native throughout the northern hemisphere, bluebells of Scotland, also known as harebell, is very popular in Scotland and is the official county flower of Yorkshire, England. In Europe, the leaves are sometimes eaten raw in a salad. It has been used in the manufacture of blue dye. Various bees enjoy the nectar of its flowers.