The corner sign identifies the planting as Chamomile, Chamaemelum nobile.    From Wordnik.com.  [Sissinghurst Part Two « Fairegarden] Reference

In homeopathy, it is classified as a nervine herb (calming to the system), in two forms: Matricaria recutita, commonly known as German chamomile, and Chamaemelum nobile, Roman chamomile (the kind most often used for cooking).    From Wordnik.com.  [I Spice: Chamomile] Reference

Matricaria (Chamaemelum) auriculata (Boiss.).    From Wordnik.com.  [The Land of Midian — Volume 2] Reference

Consider buckwheat (Fagopyrum esculentum), bugleweed (Ajuga reptans), Roman chamomile (Chamaemelum nobile) chickweed.    From Wordnik.com.  [The Full Feed from HuffingtonPost.com] Reference