I had to take a photo of these flowers at the Dock Kitchen.  Dill, Kerria, Phlox and other summer bounty, created by Kensal florists Scarlet and Violet:
These vines grown as 'standards' are an original take on the ubiquitous bay tree outside most restaurants.  I would go further and underplant with oregano, or white lavender...
Lastly a great wall of green - including many plants you might easily stumble across on a horizontal plane.  Great.