Copy permalink to share
Polemoniaceae
Phlox

not marked as a favorite taxon Phlox divaricata Linnaeus. Common name: Eastern Blue Phlox, Timber Phlox. Phenology: Apr-Jun. Habitat: Moist deciduous forests in circumneutral soils. Distribution: Vermont and Québec west to Minnesota, south to e. North Carolina, Georgia, Panhandle Florida, and Texas.

Glossary (beta!)

Origin/Endemic status: Native

Taxonomy Comments: The species is often divided into two varieties or subspecies (see synonymy), with var. divaricata (with notched petal tips) more eastern and var. laphamii (with rounded petal tips) more western. Basionym: Phlox divaricata L. 1753

Show in key(s)

Show parent genus | Show parent in key(s)

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.


Feedback

See something missing or incorrect about Phlox divaricata? Let us know here:
  1. Please include your name and if possible, email in case when need to clarify what you wrote.
  2. If you opt out of including email, please be as specific as possible (e.g., which photo is incorrect?)
  3. Please do not submit questions asking to identify plants or about horticultural topics (e.g., how do I control an invasive plant in my garden?). Instead, those questions can be submitted here for the Carolinas region only.
  4. Please do not send us feedback about unkeyed species as this work is ongoing.
  5. Please allow time for flora edits to show in our next data release. We greatly appreciate your feedback but may require extra time to research complicated taxonomic issues.

Horticultural Information

NCBG trait

Intro: Erect to reclining perennial of moist deciduous forests in circumneutral soils; may form colonies through self-seeding.

Stems: Stems unbranched, hairy and often glandular-sticky; nonflowering stems sprawl on ground and root at nodes.

Leaves: Leaves opposite, sessile, narrowly lance-shaped to oval, 1-2 in. long, with both surfaces sparsely hairy and margins with small stiff hairs.

Inforescence:

Flowers: Flowers in a loose, flattish terminal cluster; pale blue to lavender (can be red-purple) with darker eye; 3/4-1 in. wide; consisting of 5 somewhat spoon-shaped (narrow at base) lobes that flare abruptly outward from a hairless, narrow tube. The calyx consists of 5 glandular-hairy, purplish, very narrow sepals and 5 stamens are hidden inside the corolla tube.

Fruits: Fruit a oval capsule.

Comments: Flowers fragrant.

Height: to 20 in.

plant sale text: This early-flowering SE native is an excellent garden plant. Its panicles of fragrant pale blue to white flowers are plentiful in the spring and make great cut flowers. Eastern blue phlox is semi- evergreen and makes a fine edging or woodland groundcover. Often found growing in rich woods, this phlox self- sows to create impressive drifts. Try planting in combination with eastern columbine for a beautiful spring garden.

bloom table text: This native North Carolina perennial blooms April through June. It grows to twenty inches tall and produces clusters of purple-blue flowers that are quite fragrant and abundant. Phlox species have been extensively hybridized and are popular among gardeners because they spread very readily, forming a carpet of flowers in early spring. The name for this plant comes from the Greek word for "flame", which may refer to the torch-like shape of the buds. Eastern blue phlox is also known as wild sweet William.

description: Erect to reclining perennial of moist deciduous forests in circumneutral soils; may form colonies through self-seeding.

stems: Stems unbranched, hairy and often glandular-sticky; nonflowering stems sprawl on ground and root at nodes.

leaves: Leaves opposite, sessile, narrowly lance-shaped to oval, 1-2 in. long, with both surfaces sparsely hairy and margins with small stiff hairs.

inflorescence:

flowers: Flowers in a loose, flattish terminal cluster; pale blue to lavender (can be red-purple) with darker eye; 3/4-1 in. wide; consisting of 5 somewhat spoon-shaped (narrow at base) lobes that flare abruptly outward from a hairless, narrow tube. The calyx consists of 5 glandular-hairy, purplish, very narrow sepals and 5 stamens are hidden inside the corolla tube.

fruits: Fruit a oval capsule.

comments: Flowers fragrant.

cultural notes:

germination code:

native range: eastern North America