The Chicory Flower | 22 Insanely Cool Conversation-Piece Plants For Your Garden. Yep, this is the same plant used to make chicory coffee, and you can put the leaves in your salads. They should be planted in full sun. Get the seeds here.
Borage - good companion plant for tomatoes, squash and strawberries and much-loved by bees. Flowers and young leaves are edible and have a mild cucumber flavour. Use flowers sparingly in salads and float in fruit punch / Pimms. Flowers can also be candied for cake decorating. More: http://theepicentre.com/spice/borage/