Quick answer: Wholeleaf rosinweed (Silphium integrifolium) is native to 16 states. What's commonly sold under this name is the true wild species. No live listing of the true species was found as of 16 Sep 2026.
Photo: TigerTrash, Wikimedia Commons (CC-BY-SA-4.0)
Where it's native
Listed in the directory 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 | Full sun |
|---|---|
| Water | Not recorded in the wildflower.org profile |
| Soil | Well-drained |
| Bloom | Jul-Sep |
| Height | Up to 6 ft |
| Wildlife value | Special value to native/bumble bees |
Buying it
No live listing of the true wild species was found as of 16 Sep 2026 — that means our last search didn't surface one, not that the plant is unavailable.
No live seed or plant listing found as of 16 Sep 2026. That means our last search didn't surface one — not that the plant is unavailable. Try a regional native-plant nursery.
Quick answers about Wholeleaf rosinweed
Where is Wholeleaf rosinweed native?
Wholeleaf rosinweed (Silphium integrifolium) is native to 16 states across the Midwest and South. Check your state's page in this directory for the full list of plants native where you live.
When does Wholeleaf rosinweed bloom?
Wholeleaf rosinweed blooms Jul-Sep. Exact timing shifts a few weeks with latitude and elevation.
What growing conditions does Wholeleaf rosinweed need?
Light: Full sun. Soil: Well-drained. Mature height: Up to 6 ft.
Is Wholeleaf rosinweed good for pollinators and wildlife?
Yes. Wildlife value: Special value to native/bumble bees.
Where can I buy Wholeleaf rosinweed?
We haven't found an online listing of the true wild species as of 16 Sep 2026. A regional native-plant nursery or native seed company is your best source; ask for Silphium integrifolium by its scientific name.
Similar native plants
Native plants that share growing conditions or range with Wholeleaf rosinweed.
- Prairie blazing star Liatris pycnostachya
- Compass plant Silphium laciniatum
- Prairie ironweed Vernonia fasciculata
- Large penstemon (shell-leaf beardtongue) Penstemon grandiflorus
- Prairie onion Allium stellatum
- Narrow-leaf coneflower Echinacea angustifolia
Also listed under
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