The Black-eyed Susan 'Herbstonne', Rudbeckia 'Herbstonne', is a summer blooming perennial with a unique green cone that is surrounded by yellow petals; this giant is the tallest of the Rudbeckia and will grow to impressive heights! It does not need staking, however, you may want to stake it to make sure the flowers do not break at their peak performance.
Type: Herbaceous perennial
Zone: 5 to 9
Height: 4.00 to 7.00 feet
Spread: 2.00 to 3.00 feet
Bloom Time: June to August
Bloom Description: Yellow
Sun: Full sun
Water: Medium
Maintenance: Low
Suggested Use: Rain Garden
Flower: Showy
Attracts: Butterflies
Tolerate: Deer, Drought