Phlox, Upright, Bartwelve

Phlox paniculata, commonly known as garden phlox, is native from New York to Iowa south to Georgia, Mississippi and Arkansas.
It has escaped gardens and naturalized into areas beyond its original native range.
In Missouri, it is typically found south of the Missouri River in moist or rich low woods, thickets, alluvial banks and gravel bars along streams and bluff bases (Steyermark).
This is an upright perennial that grows in a clump to 2-4′ tall and to 2-3′ wide on stiff stems clad with conspicuously veined, opposite, pointed, elliptic, deep green leaves (to 4-6″ long).
Fragrant, tubular, pink-purple to white florets (to 3/4” diameter) are densely packed in large, tiered, domed terminal clusters (to 6-8″) over a long July to September bloom period.
Each individual floret has a long corolla tube and five flat petal-like lobes.
Butterflies and hummingbirds love the flowers.  #1 gallon