Borage

Borage (Borago officinalis) flower. I let it seed around the vegetable garden as I love its sky-blue, nodding flowers.

It is considered an herb, although it has few practical uses.

According to Wikipedia: The flowers have a sweet, honey-like taste and can be used to decorate desserts and cocktails, sometimes frozen in ice cubes. Young Borage leaves have a cucumber-like taste and can be added to salads or used as a garnish.

I think I'll just continue to grow it for the pretty flowers.