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Rudbeckia triloba (Browneyed susan)
Makin, Julie

Rudbeckia triloba

Rudbeckia triloba L.

Browneyed Susan, Brown-eyed-Susan, Thin-leaved coneflower, Three-lobed Rudbeckia

Asteraceae (Aster Family)


USDA Symbol: RUTR2

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

A much-branched, hairy-stemmed, short-lived perennial, 2-5 ft. tall. More numerous flowers than R. hirta, with shorter and fewer petals.


Plant Characteristics

Duration: Perennial
Habit: Herb
Size Class: 3-6 ft.

Bloom Information

Bloom Color: Yellow
Bloom Time: Jun , Jul , Aug , Sep , Oct


USA: AL , AR , CO , CT , DC , DE , FL , GA , IA , IL , IN , KS , KY , LA , MA , MD , MI , MN , MO , MS , NC , NE , NJ , NY , OH , OK , PA , SC , TN , TX , UT , VA , VT , WI , WV
Canada: ON , QC
Native Distribution: NY to GA, s. to s. MN, w. IA, e. NE & OK; escaping northeastward
Native Habitat: Open, moist woods

Growing Conditions

Light Requirement: Sun , Part Shade
Soil Moisture: Dry , Moist
Soil Description: Moist soils.
Conditions Comments: Drought-tolerant and adapts to several hours of shade.


Conspicuous Flowers: yes
Attracts: Birds


Propagation Material: Seeds
Description: Propagates very easily from seed sown in fall or spring. Large plants with numerous overlapping basal leaves, all from a single woody crown, may be divided in late winter or early spring
Seed Collection: The nutlets turn charcoal-gray at maturity, usually 3-4 weeks after the bloom period. Seeds are mature at this time, but they are easier to collect after cones lose their tight compact stucture. Store dry in sealed, refrigerated containers.
Seed Treatment: Not Available

Find Seed or Plants

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

Mr. Smarty Plants says

Native flowers for Door County, Wisconsin
September 02, 2009
We recently were required to put in a new septic system on our vacation property in Door County, WI. This left us with a clearing on our wooded lot where the septic field is now located. The installer...
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National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Suppliers Directory

According to the inventory provided by Associate Suppliers, this plant is available at the following locations:

Sunshine Farm & Gardens - Renick, WV
Ohio Prairie Nursery - Hiram, OH
Prairie Nursery - Westfield, WI

From the National Organizations Directory

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

Native Plant Center at Westchester Community College, The - Valhalla, NY
Pineywoods Native Plant Center - Nacogdoches, TX
Native Seed Network - Corvallis, OR
Mt. Cuba Center - Hockessin, DE

Additional resources

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


Record Modified: 2014-03-27
Research By: TWC Staff

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