Quick answer: Brown-eyed Susan (Rudbeckia triloba) is native to 6 states. What's commonly sold under this name is the true wild species. It's typically seed, verified 16 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, Part Shade |
|---|---|
| Water | Dry-Moist, high drought tolerance |
| Soil | Moist soils, adaptable to drier |
| Bloom | Bloom Jun-Oct |
| Height | Up to 5 ft tall |
| Wildlife value | Attracts birds, conspicuous flowers support pollinators |
Invasive / regulated
Listed invasive in Canada (CAN (I)); described as escaping northeastward from native range in eastern/central US
Buying it
Wild species
Sold true to the wild species as of the last check (16 Sep 2026), via Amazon.
Sold as: Seed via Amazon · listing verified 16 Sep 2026
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