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Phlox drummondii (Annual phlox)
Marcus, Joseph A.

Phlox drummondii Hook.

Annual phlox, Phlox, Drummond phlox

Polemoniaceae (Phlox Family)

USDA Symbol: phdr

USDA Native Status: Native to U.S.

A much-branched, sticky-glandular plant with bright rose-red, pink, or white flowers in tight clusters at the ends of stems. Annual phlox or Drummonds phlox is a showy annual. Usually 6-12 in. tall, this phlox can reach 20 in. in height. Its flowers, usually with a pale center, range in color from pink to red, white, peach, or lavender. The 1 in. blooms are in terminal clusters and are trumpet-shaped with a short, narrow tube. The leaves are soft, hairy and sticky. This southern flower of roadsides and fields escaped from cultivation. The species is named for Thomas Drummond, who sent seeds from Texas to England in 1835.

It is not commonly known that one of Texas’ most beautiful wildflowers has been prized in Europe as an “exotic” cultivated garden flower for nearly 150 years. In 1835, botanist Thomas Drummond collected the seeds of this annual wildflower in an area where a red-colored variety overlapped with a pink-flowered form. This collection of wild seed was sent first to Great Britain and later was distributed to nurserymen in several European countries. About 200 true breeding strains were developed from this single collection of seed, including red, pink, white, lavender, maroon, coral, pale pink, and the mixtures of these colors, with the central “eye” of the flower differing in color from the outer color of the petals.

The species name of this plant is named for Thomas Drummond, (ca. 1790-1835), naturalist, born in Scotland, around 1790. In 1830 he made a trip to America to collect specimens from the western and southern United States. In March, 1833, he arrived at Velasco, Texas to begin his collecting work in that area. He spent twenty-one months working the area between Galveston Island and the Edwards Plateau, especially along the Brazos, Colorado, and Guadalupe rivers. His collections were the first made in Texas that were extensively distributed among the museums and scientific institutions of the world. He collected 750 species of plants and 150 specimens of birds. Drummond had hoped to make a complete botanical survey of Texas, but he died in Havana, Cuba, in 1835, while making a collecting tour of that island.

 

From the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Size Class: 0-1 ft.
Size Notes: 6-20 inches tall.

Bloom Information

Bloom Color: White , Red , Pink , Purple
Bloom Time: Mar , Apr , May , Jun

Distribution

USA: AL , AR , CT , FL , GA , LA , MD , MI , MN , MS , MO , NC , OK , SC , TN , TX , VT , VA
Native Distribution: Native to TX; introduced in s.e. U.S.
Native Habitat: In grasslands and open woodlands in neutral to moderately acid sandy soils. In east and central Texas, rare north and west to the Llano Basin. Well-drained sand; acid to neutral.
USDA Native Status: L48(N), CAN(I)

Growing Conditions

Water Use: Low
Light Requirement: Sun , Part Shade
Soil Moisture: Dry
Soil pH: Acidic (pH<6.8) , Circumneutral (pH 6.8-7.2)
Soil Description: Although it prefers sandy, fertile soil, it can be established in a variety of well-drained soils, including alkaline substrates.
Conditions Comments: A much-branched, sticky-glandular plant with bright rose-red, pink, or white flowers in tight clusters at the ends of stems. Drummonds phlox is a showy annual. Its flowers, usually with a pale center, range in color from pink to red, white, peach, or lavender. The 1 in. blooms are in terminal clusters and are trumpet-shaped with a short, narrow tube. The leaves are soft, hairy and sticky. It prefers an acidic to neutral sandy soil.

Benefit

Use Ornamental: Shortgrass meadow, Pocket prairie, Wildflower meadow, Garden
Conspicuous Flowers: yes
Attracts: Butterflies
Nectar Source: yes
Deer Resistant: No

Propagation

Description: Seed is available from United States companies, but essentially all of it comes from European sources, and includes a full range of color, from white to deep red. Plant seed in the fall at the suggested rate of 10 pounds/acre. After distributing the seed evenly, rake into loosened topsoil to ensure good seed/soil contact. Seeding rate is 10 pounds/acre. The approximate seed count is 234,000 seeds/pound.
Seed Collection: Capsules explosively dehisce releasing their seeds. Collect seeds from capsules that have turned from green to a light tan color just prior to dehiscence.
Seed Treatment: Seeds require no pretreatment, but germination of freshly harvested seeds may be enhanced by the addition of gibberillic acid.
Commercially Avail: yes
Maintenance: Provide fall, winter, and spring watering if the seasonal rains are sparse. The plant dies back after going to seed, so it is suggested you plant with summer and/or fall-blooming wildflowers. As with all annuals, it is essential that phlox is allowed to reseed for an abundant display the following year.

 

Find Seed or Plants

Order seed of this species from Native American Seed and help support the Wildflower Center.

Find seed sources for this species at the Native Seed Network.

Mr. Smarty Plants says

Question: Dear Mr. Smarty Plants: I moved to TX last year, for now living in an apartment with a good-size but shady deck; my garden in VA was full of VA native plants. What TX natives, if any, can I grow in containers on a shady deck? Besides prickly pear: already have babies growing from three fallen pads that I potted. Thank you.
click here to view the full question and answer

Question: I recently bought a house in a new subdivision just south of Houston - as with most new developments, the area is devoid of nature for the most part... I have planted many bird/butterfly/bee friendly plants in the backyard and instead of having a traditional lawn, I would like to create a meadow. I have been looking at the Wildflower Center's selection of native seeds, but I'm not sure where to start. Can you help me choose some native grasses and wildflowers that might do well in the wet clay soil? I am a big fan of insects and birds and want to make my yard into a refuge for them. Thank you for your help!
click here to view the full question and answer

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Fredericksburg Nature Center - Fredericksburg, TX
Lady Bird Johnson Wildflower Center - Austin, TX
Sibley Nature Center - Midland, TX
Brackenridge Field Laboratory - Austin, TX
Native Plant Society of Texas - Fredericksburg, TX
Stengl Biological Research Station - Smithville, TX
* Available Online from Wildflower Center Store

Bibliography

Dale Groom's Texas Gardening Guide (2002) Groom, D.
Landscaping with Native Plants of Texas and the Southwest (1991) Miller, G. O.
McMillen's Texas Gardening: Wildflowers (1998) Howard, D.
* Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller

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Recommended Species Lists

Find native plant species by state. Each list contains commercially available species suitable for gardens and planned landscapes. Once you have selected a collection, you can browse the collection or search within it using the combination search.

View Recommended Species page

Additional resources

USDA: Find Phlox drummondii in USDA Plants
FNA: Find Phlox drummondii in the Flora of North America (if available)
Google: Search Google for Phlox drummondii

Metadata

Record Modified: 2008-07-16
Research By: TWC Staff

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