| Description | Whorled Rosinweed (Silphium trifoliatum) is a tall yellow flowering native prairie perennial. The leaves are whorlded around the slender strong stems. |
|---|---|
| Pronunciation | Full Sun to partial sun, medium to medium-dry |
| Plant Type | Perennials Hardy, Wild Flowers |
| Hardiness Zone | (4)5 |
| Sunlight | full, mostly sunny, partial shade |
| Moisture | Average, medium to medium dry, and drought tolerant once established. |
| Soil & Site | average, reported to tolerate clay |
| Flowers | Yellow sunflower-like flowers with thin petals. It starts flowering in mid-July. |
| Leaves | Distinct three leaves whorled around its glabrous green to purple stem. Leaves are cauline and mostly form a whorl of three leaves. |
| Stems | Tall, glabrous green to purple smooth stems. |
| Dimensions | 5 feet tall |
| Propagation | seeds |
| Native Site | Whorled Rosin Weed is native to most states east of the Mississippi River. |
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