Rudbeckia, Black-Eyed Susan, Gloriosa Daisy 'Marmalade'

Rudbeckiahirta

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Rudbeckia (rud-BEK-ee-a)
Species
hirta (HER-tuh)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Height
24-36 in. (60-90 cm)
Spacing
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
Hardiness
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)
Bloom Color
Bright Yellow
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Blooms repeatedly
Other Details
Category
Annuals
Biennials
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Can be grown as an annual
Bloom Characteristics
Flowers are good for cutting
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Belmont, California

Orange, California

Fort Wayne, Indiana

Calvert City, Kentucky

Mason, Michigan

Minneapolis, Minnesota

Liberty, Missouri

Greenfield, New Hampshire

Albuquerque, New Mexico

Catskill, New York

Palenville, New York

Penn Yan, New York

Red Oak, North Carolina

Canton, Ohio

Bend, Oregon

Charleston, South Carolina

North Augusta, South Carolina

Maryville, Tennessee

Arlington, Texas

Dallas, Texas

Leander, Texas

Madison, Wisconsin

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Gardener's Notes:

2
positives
1
neutral
0
negative
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C
Liberty, MO | May 2008 | neutral

I loved the foliage on this plant last summer, which prompted me to buy it at my local nursery, and it bloomed great alongside my other B...Read More

N
N
Dallas, TX (Zone 8b) | August 2003 | positive

I feel that the black eyed susan's are on par with the coneflowers the purple and the white. The bloom doesn't seem to last as long, but...Read More

M
Albany, MO (Zone 5a) | January 2003 | positive

Excellent cut flower. Strong stems. Last 7 - 10 days in vase. Self-seeds.

Featured
Wasp Fly
(Sicus ferrugineus)
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(Spizella passerina)
Featured
Wasp Fly
(Sicus ferrugineus)
Chipping Sparrow
(Spizella passerina)