Photo by Melody

PlantFiles: Black-eyed susan
Rudbeckia serotina

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Rudbeckia (rud-BEK-ee-a) (Info)
Species: serotina (se-roh-TEE-nuh) (Info)

20 members have or want this plant for trade.


12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Unknown - Tell us

USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade

Unknown - Tell us

Bloom Color:
Gold (Yellow-Orange)
Bright Yellow

Bloom Time:
Mid Summer

Unknown - Tell us

Other details:
Unknown - Tell us

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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3 positives
No neutrals
No negatives

Gardeners' Notes:

Positive Chillybean On Jun 15, 2013, Chillybean from Near Central, IA (Zone 5a) wrote:

We bought some last year, desiring to replace many of our plants and flowers with natives. They bloomed beautifully then and are coming back again this year. I have such a hard time getting anything to grow, that I will give any small success a positive rating.

We planted these on the north side of the house, and it gets partial shade. They seem to do nicely in that area.

Positive barb1234 On Nov 16, 2009, barb1234 from Escondido, CA wrote:

My first time with this plant.[purchased at Lowes] Get many comments from folks who pass my yard. Easy to grow and low water needs plus good looks. A+ for SoCalif.

Positive nepenthes_guy On Nov 15, 2009, nepenthes_guy from Reno, NV wrote:

This plant is extrmely hardy. I live in Reno,Nevada,and deer are everywhere. Suprisingly, the deer did not have any interest in it. The flowers are big with a black center, and yellow petals.


This plant has been said to grow in the following regions:

, (2 reports)
Escondido, California
New Castle, Delaware
Hollywood, Florida
Yale, Iowa
Garden City, Kansas
Olathe, Kansas
Shawnee Mission, Kansas
Fort George G Meade, Maryland
Oakland, Maryland
Arlington, Massachusetts
Plainwell, Michigan
Reno, Nevada
Albuquerque, New Mexico
Canton, Ohio
Cincinnati, Ohio
Madison, Ohio
Murfreesboro, Tennessee
Virginia Beach, Virginia
Whitehall, Wisconsin

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