Quick answer: Black-eyed Susan (Rudbeckia hirta) is native to 42 states. What's commonly sold under this name is often a bred variety or the wrong species — see the lookalike alert below. It's typically seed, verified 15 Sep 2026.
Where it's native
Listed in the register as native to these states. Click a state for its full native-plant guide.
Growing conditions
From the Lady Bird Johnson Wildflower Center Native Plant Database.
| Sun | Sun |
|---|---|
| Water | Medium water, Dry-Moist |
| Soil | Moist to dry, well-drained soils, juglone tolerant |
| Bloom | Bloom Jun-Oct |
| Height | Up to 3 ft tall |
| Wildlife value | Nectar for bees/butterflies/insects, larval host for Gorgone Checkerspot and Bordered Patch, birds eat seeds, high deer resistance |
none noted formally; can become aggressive if given too perfect environment and not enough competition
Lookalike alert
Everywhere; consistent "Gloriosa Daisy"/"Green Eyes" cultivar trap; MD state flower.
Sold as: Seed via Amazon · listing verified 15 Sep 2026
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