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Rudbeckia, Black-Eyed Susan, Gloriosa Daisy 'Indian Summer'

Rudbeckia hirta

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Rudbeckia (rud-BEK-ee-a) (Info)
Species: hirta (HER-tuh) (Info)
Cultivar: Indian Summer
View this plant in a garden





Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun

Sun to Partial Shade




This plant is resistant to deer

Foliage Color:

Unknown - Tell us


24-36 in. (60-90 cm)


12-15 in. (30-38 cm)

15-18 in. (38-45 cm)


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)

Where to Grow:

Grow outdoors year-round in hardiness zone

Can be grown as an annual


Unknown - Tell us

Bloom Color:

Gold (yellow-orange)

Bright Yellow

Bloom Characteristics:

Flowers are good for cutting

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Bloom Size:

Unknown - Tell us

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall

Blooms repeatedly

Other details:

May be a noxious weed or invasive

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; sow indoors before last frost

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Unknown - Tell us


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

Dothan, Alabama

Marion, Arkansas

Citrus Heights, California

Duarte, California

Largo, Florida

Pensacola, Florida

Buford, Georgia

Cordele, Georgia

Lawrenceville, Georgia

Cherry Valley, Illinois

Rockford, Illinois

Iowa City, Iowa

Hebron, Kentucky

Abita Springs, Louisiana

Hammond, Louisiana

Youngsville, Louisiana

Parkville, Maryland

West Springfield, Massachusetts

Dearborn Heights, Michigan

Pinconning, Michigan

Springfield, Missouri

Bayville, New Jersey

Fanwood, New Jersey

Metuchen, New Jersey

Mount Laurel, New Jersey

Himrod, New York

Orchard Park, New York

Somers, New York

Broadway, North Carolina

Kannapolis, North Carolina

Defiance, Ohio

Geneva, Ohio

Marietta, Ohio

West Chester, Ohio

Drexel Hill, Pennsylvania

Phoenixville, Pennsylvania

North Augusta, South Carolina

Knoxville, Tennessee

Austin, Texas

Richmond, Texas

San Antonio, Texas

Sterling, Virginia

Alderwood Manor, Washington

Brier, Washington

Kalama, Washington

Olympia, Washington

show all

Gardeners' Notes:


On Jul 24, 2015, vossner from Richmond, TX (Zone 9a) wrote:

It has only grown in my garden for one season, so no invasiveness issues yet. I have r. Goldstrum and r. Denver Daisy planted relatively close together and the variety of blooms in same area provides nice visual interest.


On Mar 17, 2012, caringgardener from Youngsville, LA wrote:

I discovered this variety of rudbeckia because I couldn't find Rudbeckia 'Eary Bird Gold'. Poole Brothers in Forest Hill, LA suggested Rudbeckia 'Indian Summer', so I bought 6 of them. I was able to transplant all six this year, and I divided them, which gave me around 40 individual plants. They multiply vertically on the old stems. They bloomed all year last year. I just went back to Forest Hill, LA today and bought 55 more. They have become one of my favorites in the yard and as a cut flower.


On Jul 11, 2011, fuchsiamama from Republic, MO wrote:

Love this plant! Very impressive statement in the garden!! It is grown in the Master Gardener Demonstration Gardens at Nathanael Greene Park. It definitely self sows as a nice big one is growing in the vegetable garden this year! The pics I took are twins of some of the ones posted here.


On Apr 26, 2011, Hindernone from Broadway, NC (Zone 7b) wrote:

We planted 8 of these last spring. So far this spring 4 are returning. We loved these blooms so much this past season that we purchased 10 more plants this spring.


On Jun 13, 2010, gardeningfun from Harpersfield, OH (Zone 5a) wrote:

I bought and planted 2 of these in different areas of my yard last summer-2009. Neither one came back this year. We have heavy snows in winter with low temps, and it says they would do well in our zone -5a ( Geneva, Ohio), but they didn't. They completely disappeared. No trace of them having ever been there, but the plant marker.


On Jul 25, 2005, rscadlock from Lynnwood, WA wrote:

I purchased 3 of these plants last fall, they kept blooming right through to November. In winter they died back, but in spring they bounced right back. I just love them. The color they add to my garden is amazing. The cut flowers last for a very long time and there seems to be an endless supply to bring indoors. I would recommend this plant to anyone.


On Jun 24, 2004, Brent_In_NoVa from Sterling, VA (Zone 6b) wrote:

I planted three of these plants in my garden last year and love it! The flowers are huge, the foliage is handsome, and the bloom season long. A friend of my neighbor came over to take pictures.

This spring it was slow to come up. I have some other rudbeckia that were 12" tall before my Indian Summer started to show growth. I did not deadhead last year and I ended up with a lot of seedlings this year (that is cool with plants!...gave some away and will move some to another spot in my yard).


On Jul 17, 2003, judiartist from Phoenixville, PA (Zone 6b) wrote:

Bought one of these this year for the first time. My plant is now almost 4 feet tall and blooms range from 4 to 5 inches across on long stems -- excellent for cutting! I would recommend this over any other rudbeckia I've tried for anyone wishing to cut flowers. (Other varieties I've tried have small blooms with varying age and quality clustered together -- a challenge for flower arranging at best!)


On Jul 6, 2003, MartyJo from Fayette, IA (Zone 4b) wrote:

The seed packet listed this as an annual in our area - Zone 4b - but I have had several plants come back 3 or more years. Better yet, it self seeds, so there are always younger plants coming along. Does not seed so prolifically that it becomes a problem.