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Brundage, Stephanie

Coreopsis grandiflora

Coreopsis grandiflora Hogg ex Sweet

Largeflower Tickseed, Large-flower Tickseed, Common Coreopsis

Asteraceae (Aster Family)

Synonym(s):

USDA Symbol: COGR5

USDA Native Status: L48 (N), CAN (I)

A 1-2 ft. perennial, occasionally annual, with several stems which are leafy nearly to the summit. Leaves are dissected into linear segments. Flower heads are few or solitary on leafless peduncles. The showy ray flowers (petals) are bright yellow.

This plant self-sows readily, becoming weedy.

From the Image Gallery

25 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 2 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Yellow
Bloom Time: May , Jun , Jul , Aug

Distribution

USA: AL , AR , CT , FL , GA , IA , IL , IN , KS , KY , LA , MD , ME , MI , MO , MS , NC , NJ , NM , OH , OK , PA , RI , SC , TN , TX , VA , VT , WI , WV
Canada: ON , QC
Native Distribution: S.e. U.S., inland to MO, e. KS, OK & TX; introduced elsewhere.
Native Habitat: Open, sandy woods; roadsides; fields

Growing Conditions

Light Requirement: Part Shade
Soil Description: Sandy soils
Conditions Comments: This plant is not reliably perennial and self-sows readily, becoming weedy.

Propagation

Description: Easily grown from seed. Mature plants may be increased by division.
Seed Treatment: Seeds of this genus generally germinate without pretreatment.
Commercially Avail: yes

Mr. Smarty Plants says

Native plants for shady small spaces in Houston, TX
June 18, 2006
What are the best plants and flowers to plant in small spaces in an urban area in Houston, Texas? I have several flower beds that are 3 foot wide and 10-12 foot long that get half day sun. The area...
view the full question and answer

Bibliography

Bibref 1620 - Gardening with Native Plants of the South (Reprint Edition) (2009) Wasowski, S. with A. Wasowski
Bibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
Bibref 1294 - The Midwestern Native Garden: Native Alternatives to Nonnative Flowers and Plants An Illustrated Guide (2011) Adelman, Charlotte and Schwartz, Bernard L.

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Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Research Literature

Reslit 182 - Effects of hardwood sawdust in potting media containing biosolids compost on plant growth, fertilizer needs, and nitrogen leaching (1999) G. J. Bugbee
Reslit 314 - Natural chilling and limited inductive photoperiod affect flowering in two Asteraceae genera (1996) M. P. Damann and R. E. Lyons
Reslit 313 - Juvenility, flowering, and the effects of a limited inductive photoperiod in Coreopsis grandiflora and C. lanceolata (1993) M. P. Damann and R. E. Lyons
Reslit 297 - Allozyme divergence and intraspecific variation in Coreopsis grandiflora (Compositae) (1984) D. J. Crawford and E. B. Smith
Reslit 563 - Harvest Date and Storage Quality of Herbaceous Perennials (1995) A. M. Hanchek and A. C. Cameron
Reslit 745 - Role of Photoperiod Vernalization and Gibberellic Acid in Floral Induction in Coreopsis grandiflora Nutt. (1966) H. J. Ketellap and A. Barbaro
Reslit 884 - Chloroplast DNA Haplotype Variation within and among Populations of Coreopsis grandiflora (Asteraceae) (1995) R. J. Masongamer, K. E. Holsinger and R. K. Jansen
Reslit 995 - Prevernalization daily light integral and vernalization temperature influences flowering of herbaceous perennials (2002) G. H. Niu, R. Heins, A. Cameron and W. Carlson
Reslit 1038 - Coreopsis grandiflora 'Sunray' flowers in response to short days or vernalization (2005) S. Padhye, E. S. Runkle and A. Cameron
Reslit 1197 - Specific functions of red, far red, and blue light in flowering and stem extension of long-day plants (2001) E. S. Runkle and R. D. Heins

This information was provided by the Florida WIldflower Foundation.
Search More Titles in Research Literature

Additional resources

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

Metadata

Record Modified: 2022-12-09
Research By: TWC Staff

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