Below find a few shots of summer perennials at the Conservatory Gardens.
The border edge at the south gardens:
A close up of the border and the great hedge of Japanese Holly:
Balloon Flower (or Platycodon grandiflorus), with Echinacea purpurea (Purple Coneflower), Phlox paniculata (Phlox), and Perovskia atriplicifolia (Russian Sage) in the background:
The common name exists for the pretty obvious reason that the buds enlarge like blue balloons before the petals open up. The Latin prefix, platy-, means broad (think of the broad beak of the Platypus). In this case, the root word refers to the plants' broad petals.
Finally, I am including a favorite annual, Gomphrena globosa, or Globe Amaranth:
Note that the pink 'petals' are really bracts and the true flower is tiny and white and sits among the many bracts.