The leaves can be used in a green salad green, the flowers are beautiful edible decorations.
Borage Edible Flowers look great and can be used in soups, salads, borage-lemonade, strawberry-borage cocktails, preserves, borage jelly, various sauces, cooked as a stand-alone vegetable, or used in desserts in the form of fresh or candied flowers.
Borage flowers can be added to fruit and green salads or used as an edible garnish on cakes, cold soups, ice cream and delicate pastries. Their refreshing flavor complements light summer beverages. Add whole flowers to lemonade, white wine sangria and spritzers or freeze flowers in ice cubes to add a colorful pop to lightly hued cocktails.

This herb is also the highest known plant source of gamma-linolenic acid (an Omega 6 fatty acid, also known as GLA) and the seed oil is often marketed as a GLA supplement. It is also a source of B vitamins, beta-carotene, fiber, choline, and, again, trace minerals. In alternative medicine it is used for stimulating breast milk production and as an adrenal gland tonic, and can be used to relieve stress.
Borage, also known as starflower, bee bush, bee bread, and bugloss, is a medicinal herb with edible leaves and flowers. Borage and sunflowers share the honor of being bee hot-spots. It was grown by beekeepers to boost honey production, grown as an ornamental plant, but is also edible and medicinal, making borage a super plant.
Borage flowers grow on hollow stems that are covered with fine white hairs. The tiny flowers are star-like in shape and can be blue, lavender or purple in color. From the center of the flower protrudes five stamens and black anthers. When fresh both the flower and leaves offer a mild herbal cucumber flavor and aroma. You can add Borage to the brine when making pickles.