Borage is an annual herb that mysteriously appeared in my back garden a few years ago. I let it stay because I am a sucker for blue and anything that self-seeds but isn't invasive. I especially like how the hairy flowers and stems look when they are backlit in the evening - so pretty!! Plus the bees loves it. The flowers open pink and turn to blue, which is also cool.
Apparently it can be added to salads and tastes like cucumber, but I've never tried it. Anyone recommend this?
spec's: gets 60 cm tall and wide, likes full sun, self-seeds, is drought tolerant.