
A perennial herb with lance-shaped, evergreen leaves and showy, rounded clusters of (usually) lavender flowers. Flowers tubular with 5 lobes, the lobes spreading, somewhat heart-shaped, with or without fine notches, in varying colors: pale blue-purple, red-purple, rose-lavender, rarely white. Blooms April–June. Leaves opposite, lance-shaped, spaced apart, to 2 inches long, finely hairy. Dark green, leafy shoots spread from base, take root, and persist through the winter.
Height: to 1 foot.

Statewide, except for the southeast lowlands.
Habitat and Conservation
Occurs in rich or rocky soils in open woods, thickets, wet streamsides, bottomlands, usually in partial or full shade, but sometimes in full sun. A native to much of the eastern United States, blue phlox is also found in cultivation, and some forms have been created just for gardening.
Human Connections
Blue phlox does well in wildflower gardens, thriving in shade or part-shade, in rich soils. Be sure you get your plants from an ethical native-plant nursery; don't dig them from the wild.
Missouri's lovely spring wildflowers help create the scenic beauty that is a big part of our state's tourism. Wildflowers also contribute to our sense of well-being after a long winter.
Ecosystem Connections
Butterflies are attracted to this species of phlox, and in fact, only insects with long tongues can reach far enough down the flower tube to reach the nectar. Thus butterflies and skippers, moths (especially various sphinx moths), and long-tongued bees (such as bumble bees) are the principal pollinators. Blue phlox flowers must be cross-pollinated in order to produce viable seed, so this plant requires the help of insect pollinators to reproduce.
Several animals eat the plant, as well. These include rabbits and deer, which browse the foliage, but also insects. The caterpillars of the darker-spotted straw moth (Heliothis phloxiphaga) feed on the flowers and seeds of phlox plants. The caterpillars of a moth called the "olive arches" (Lacinipolia olivacea) are known to chew phlox leaves (plus the leaves of several other plants, too). The phlox plant bug (Lopidea davisi) sucks juices from the flowers and flower buds.





