- Rudbeckia hirta
- Biennial
- Zones 3–8
- Yellow
- Single
Rudbeckia hirta
black-eyed Susan
Biennial rudbeckia hirta black-eyed Susan in yellow and orange, blooming in early summer, midsummer, and late summer. Daisy-like flowers with yellow to orange-yellow rays around a dark brown center. USDA zones 3–8.
Cross-referenced · 3 sources
At a glance
- Flower form
- Rudbeckia hirta Single
- Colors
-
- Yellow
- Orange
- Blooms
- Early summer, Midsummer, Late summer
- Vase life
- Not grown for cutting
- Height
- 2–3 ft (61–91 cm) Spread: 1–2 ft (30–61 cm)
- Sunlight
- Full sun
- Hardiness
- USDA zones 3–8 Biennial
- Planted as
- Seed
- Botanical name
- Rudbeckia hirta
In the garden
- Butterflies
- Seldom severely damaged by deer (Rutgers rating)
Origin
Native wildflower of the central United States; Missouri Botanical Garden describes it as an annual, biennial or short-lived perennial that blooms the first year from spring-sown seed.
Sources
Where to buy
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All photos
Questions
Is Rudbeckia hirta hardy in my zone?
Rudbeckia hirta survives winter in the ground in USDA zones 3 to 8. In colder zones treat it as an annual or lift it before the ground freezes.
Does Rudbeckia hirta need full sun?
Rudbeckia hirta grows in full sun.
When does Rudbeckia hirta bloom?
Rudbeckia hirta blooms in early summer, midsummer, and late summer.
Is Rudbeckia hirta good for cutting?
Our sources don't list Rudbeckia hirta as a cut flower or give a vase life for it.

