The wood phlox (Phlox divaricata) came in a 2-inch pot (5 cm) and was planted in a mostly shady spot. It was sold to me as a shade variety of the creeping phlox without as many blooms, and as a native.
The phlox did not do much all of last year after I assured it that I will care for it. But this spring it sprung forth a burst of new growth and is blooming. Note, it is not similar to the creeping phlox.
Flowers are larger, and more dispersed. The plant produces stems that are much more upright at about 10-inches in height (25 cm). These will probably turn into runners and spread. To me, wood phlox more accurately resembles an upright vinca minor. After reading that the flowers are fragrant, I had to shove my nose down to the ground and test this out. There is a slight fragrance.
For The Record:
New bed with heavy clay soil with some organic amendments
Mostly light shade
Small amount of fertilizer
No serious pests/disease
Blooming: Dogwood, midseason tulips, wood phlox, poet
daffodils, leucojum, muscari