Common Name: black-eyed Susan
Type: Herbaceous perennial
Family: Asteraceae
Zone: 3 to 9
Height: 2.00 to 3.00 feet
Spread: 1.00 to 2.00 feet
Bloom Time: July to September
Bloom Description: Yellow
Sun: Full sun
Water: Dry to medium
Maintenance: Low
Suggested Use: Naturalize
Flower: Showy
Attracts: Butterflies
Tolerate: Deer, Drought, Clay Soil
Culture
Best grown in average, evenly moist, well-drained soils in full sun. Tolerates hot and humid summers. Tolerates some drought once established. Deadhead spent flowers to encourage additional bloom. May flop and require staking in rich, fertile soils. Divide clumps every 4-5 years to maintain robust growth.
Noteworthy Characteristics
Rudbeckia is a genus of about 20 species of annuals, biennials and perennials from North America. They are grown for their showy, daisy-type flowers which usually feature a dark, central eye of disk florets ringed by yellow ray florets.
Genus name honors Olof Rudbeck (1630-1702) Swedish botanist and founder of the Uppsala Botanic Garden in Sweden where Carl Linnaeus was professor of botany.
‘Glitters Like Gold’ is a hybrid Rudbeckia cultivar with 3” wide golden blooms. It will tolerate most soil conditions, with the exception of wet, saturated soil. ‘Glitters Like Gold’ is an improved selection of the Rudbeckia cultivar ‘Goldstrum’, and is resistant to septoria leaf spot disease.
Problems
Watch for aphids, powdery mildew, downy mildew, and septoria leaf spot. Susceptible to aster yellows disease.
Uses
Massed or grouped in mixed perennial borders, cutting gardens, cottage gardens, and native plantings.