Black-eyed Susans are the reliable workhorse of the sunny border. Golden petals around dark chocolate centers. Blooms from midsummer until frost. Spreads gracefully without being invasive.
Sun: Full sun. Water: Low. Zones: 3–9. Height: 2–3 ft. Bloom time: Summer to frost.
Plant in well-drained soil in full sun. Very drought tolerant once established. Deadhead to extend blooming or leave seed heads for birds. "Goldsturm" is the most popular cultivar.
Pertanyaan yang Sering Diajukan
01 Do black-eyed Susans come back every year?
Yes — Rudbeckia fulgida 'Goldsturm' is a reliable perennial in zones 3–9. Some annual black-eyed Susans (R. hirta) reseed but don't overwinter. Check the species on your tag to know which you have.
02 Do black-eyed Susans spread?
They spread gracefully by short rhizomes and self-seeding, but never aggressively. A single plant expands into a 2–3 foot clump over several years. Deadhead the seed heads if you want to prevent volunteers.
03 Why are my black-eyed Susan leaves spotted and yellowing?
Usually septoria leaf spot — a fungal disease that appears in humid summers. Water at soil level (not overhead), remove infected leaves, and space plants for airflow. 'Goldsturm' is particularly susceptible; newer cultivars like 'American Gold Rush' resist it.