Quick answer: Smooth oxeye (Heliopsis helianthoides) is native to 12 states. What's commonly sold under this name is the true wild species. 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, Part Shade |
|---|---|
| Water | Low water, Dry |
| Soil | Sandy soils |
| Bloom | Bloom Jun-Sep |
| Height | 3-5 ft tall |
| Wildlife value | Attracts hummingbirds, supports conservation biological control |
Buying it
Wild species
Sold true to the wild species as of the last check (15 Sep 2026), via Amazon.
Sold as: Seed via Amazon · listing verified 15 Sep 2026
See where to buy →Also listed under
Get the full buying guide
Every pick worth knowing across pollinators, shade, drought and more, in one PDF, with the tradeoffs spelled out. No spam, unsubscribe anytime.